Nurse!

Bobbi Kristina suffered injuries to her face before she was found submerged in a bathtub -- according to a report -- and that sparked the investigation focusing on her boyfriend Nick Gordon.

As TMZ first reported ... Roswell PD started taking a closer look at Nick and Bobbi Kristina's relationship after certain injuries raised their concerns.

WSB-TV in Atlanta says sources close to the investigation tell them the marks were on her face ... and more specifically, her mouth.

As we've told you ... multiple sources say there is a history of violence in their relationship -- and their friend Max Lomas told police Nick was acting strangely before they found Bobbi Kristina.

Bobbi Kristina and Nick Gordon's violent relationship was well known among their friends ... and sources tell us it was fueled by jealousy -- but not the kind you'd expect.

Sources close to the couple tell us ... their spats, which sometimes resulted in domestic violence, were almost always triggered by Nick's jealousy over Bobbi Kristina's fame. He felt he was also Whitney Houston's child since he grew up with her and could not understand why people focused on Bobbi.

One recent example ... they were trying to get their own TV show but when Nick wasn't offered the same deal as Bobbi Kristina they turned it down.

Sources close to the couple tell us Bobbi Kristina's injuries, which triggered an ongoing criminal investigation with Gordon as the target, don't surprise their friends because they've known the relationship sometimes got violent.

We made multiple attempts to reach Nick. So far, no word back.

Bruce Jenner may not be the driver who caused a woman to die on PCH Saturday ... because law enforcement tells TMZ they now believe the Prius that led the pack made a sudden stop, causing the Lexus to crash into it ... BEFORE Bruce hit the Lexus.

As TMZ first reported ... Sheriff's deputies were suspicious of the story the Prius driver told. She said she was stopped at a red light, but she was 300 feet from the light. When cops asked her if there was a line of cars in front of her she was vague. Deputies think she might have been making an illegal U-turn.

So the current scenario is this ... the Prius came to a sudden, possibly illegal stop on the highway. The Lexus hit the Prius and then Bruce slammed on his brakes, swerved right but was unable to stop, slamming into the Lexus. The Lexus then went into oncoming traffic and hit the Hummer, killing the Lexus driver.

It appears there is no criminal liability on Bruce's part. As for civil liability, there is a law that you cannot follow too close and need to prepare for sudden events. But if the Prius stopped without warning ... that driver could be at the very least partly responsible for the accident.

6:00 PM PST -- Jenner released a statement about the crash saying, "My heartfelt and deepest sympathies go out to the family and loved ones, and to all of those who were involved or injured in this terrible accident."

Bruce adds, "It is a devastating tragedy and I cannot pretend to imagine what this family is going through at this time. I am praying for them. I will continue to cooperate in every way possible.”

As Bobbi Kristina lays near death ... the family is discussing funeral plans, but we're told the Browns are preparing for war because of the way they were treated when Whitney Houston died.

Sources connected with the Brown family tell TMZ ... they are a united front to this extent -- they refuse to be disrespected the way they feel they were at Whitney's funeral.

You may recall ... Bobby Brown stormed out of the funeral after security refused to let him sit with Bobbi Kristina during the service. Bobby told us at the time ... he was also furious the Houstons were angry that he dared to bring 9 members of his family with him.

We're told the feud has already reignited. Houston family security set up a perimeter around Bobbi Kristina's room shortly after she was taken to the hospital and there was a passcode to gain entrance. Many people in the Brown family were not given the code and it caused an uproar.

As one Brown family member told us, "If something happens to Bobbi Kristina, we will not be treated like children."

And we're told the angry discussions are not being held around Bobby Brown. He's gotten wind of the talks several times and he immediately shuts everyone down.

3:45 PM PT Law enforcement sources tell TMZ ... Bruce volunteered to go to the hospital to have his blood drawn for blood alcohol testing. He was taken in a Sheriff's cruiser. We've also learned the woman who was killed in the white car was coming to a stop at a red light when Bruce hit her. We're told law enforcement has already determined Bruce was not speeding.

And we're told there was a 4th car involved in the accident. The woman in the white car hit a Prius in front of her before moving into oncoming traffic.

Bruce Jenner was involved in a horrific car accident on Pacific Coast Highway in Malibu at around noon Saturday, one person is dead, and it looks like Bruce caused the accident ... TMZ has learned.

Law enforcement sources tell us ... there were 4 vehicles involved in the crash. We're told there were 8 people involved and all sustained some sort of injury ... but one person died at the scene.

Eyewitnesses say Bruce rear ended the white car and that car went into oncoming traffic and was struck by the Hummer. You can see the impact in the pics below. The woman driving the white car died.

One law enforcement source said Bruce seems to be ok, but again, we're told the 7 survivors sustained some injuries, ranging from minor to moderate.

Jenner family sources tell TMZ Bruce was being chased by as many as 5 paparazzi at the time of the crash. Bruce told cops he wasn't drinking and passed a field sobriety test.

We're told Bruce had picked up his Polaris UTV after loaning it to a wounded veterans group.

There is an active criminal investigation underway in Georgia in the Bobbi Kristina case ... it centers on possible foul play and the target is her boyfriend ... TMZ has learned.

Law enforcement sources tell us ... Bobbi Kristina had certain injuries that have piqued their interest. We do not know the nature of the injuries. Multiple sources tell TMZ there is a history of violence between Bobbi Kristina and boyfriend Nick Gordon.

We're told police are looking into a possible altercation more than an hour before Bobbi Kristina was found submerged in a bathtub.

We're told Max Lomas -- the friend who discovered Bobbi Kristina in the tub -- arrived at around 9 AM last Saturday. He says he hung out with Nick but did not see Bobbi Kristina. He was told she was in the bedroom. Nick wandered away and Max says he didn't pay attention to his whereabouts.

The cable guy showed sometime after 10 AM and Max says he let him in -- Nick was nowhere to be seen. The cable guy said he needed access to the bedroom so Max let him in and discovered Bobbi Kristina in the tub. He screamed for Nick, who ran in and administered CPR.

We're told Max claims Nick allegedly cleaned up the home and removed blood stains.

Cops interviewed both Max and Nick and they want to debrief Max again, but our law enforcement sources say Max's lawyer insisted on immunity before he spoke again. We're told as of Friday morning Max hadn't gotten immunity or talked to cops.

It's incredible ... Dionne Warwick -- the cousin of Whitney Houston, who died in a bathtub 3 years ago and the cousin of Bobbi Kristina, who is clinging to life after almost drowning in a bathtub -- slipped and fell in her shower and ended up hospitalized for almost 2 weeks ... TMZ has learned.

We're told the slip and fall occurred January 24th. Dionne was at her home in South Orange, New Jersey January 24 when she fell.

She was taken by ambulance to a local hospital where she underwent ankle surgery and was released Thursday.

The timing is remarkable. The 911 call for Dionne came in at 10:19 AM on Saturday, January 24th. The 911 call for Bobbi Kristina came in exactly a week later, at 10:25 AM on Saturday, January 31st.

Bobby Brown is adamant ... he doesn't want to take his daughter Bobbi Kristina off life support because he believes in God-driven miracles.

Bobby's feelings are not shared by doctors, who have advised him she will not improve and pulling life support is an appropriate action. But Brown and his family -- who are deeply religious -- believe doctors cannot account for miracles ... miracles the family has seen before.

We're told Bobbi Kristina's condition has remained the same since Monday morning ... her brain functions are minimal and there has been no improvement.

Family sources say this has been an ongoing discussion and they believe Brown could come around to the doctor's point of view as time goes on ... but as of late Thursday he's not budging.

When his daughter was transferred to Emory University Hospital Tuesday Brown was hopeful the renowned staff could do something, but the fact that there's been no change is what doctors believe is the handwriting on the wall.

Oprah Winfrey was on the verge of tears as photogs told her that Bobbi Kristina will probably not make it.

The first photog got the facts wrong, but eventually Oprah got the gist ... that doctors have recommended Bobby Brown withdraw life support ... something he will not do, at least for now.

Oprah just stops as she hears the news, and you can see the emotion build.

She was coming out of Lucques in West Hollywood and spent a fair amount of time chatting with photogs. She also had an opinion about the timing as we come up on the 3rd anniversary of Whitney Houston's death.

11:45 AM PT -- There are reports that Bobbi Kristina was taken off life support ... but TMZ has been told by sources close to the family that these claims are absolutely false.

We are also told that Bobbi Kristina's grandmother Cissy has still not seen her but plans are in place to get her to Emory University Hospital as soon as possible.

There's nothing more doctors can do for Bobbi Kristina -- and they've told Bobby Brown it's time to withdraw life support ... TMZ has learned.

Family sources tell us the decision is now in Brown's hands -- but we're told he's refusing to make the painful choice today, and instead wants to wait until after the weekend.

The timing could not have been worse. Today is Bobby Brown's birthday.

We're told Brown has been hopeful his daughter can beat the odds because someone in his extended family battled out of a coma after 8 days.

Bobbi Kristina was moved to Emory University Hospital Tuesday because the facility has a world class neurological department, but it appears doctors have determined there's no hope.

Bobbi Kristina has been in a medically-induced coma since Saturday, when she was found face down in her bathtub.

Suge Knight has a new problem ... the woman who frantically called 911 seems to support the police theory that Suge intentionally ran over his victims.

The 911 caller is clearly unraveled as she describes what she saw last Thursday from start to finish. What's especially important ... she says Suge and one of the victims were fighting and then Suge "pull back and pushed forward and run him over."

It's not crystal clear, but it seems she's saying Suge hit the guy intentionally.

Metta World Peace had a rough start to his pro basketball career in China -- telling TMZ Sports he got pretty sick right when he got to town ... and spent 3 days in a Chinese hospital.

Metta -- who inked a deal with the Sichuan Blue Whales back in August -- said he fell ill on day 1 of his international career ... and doctors hooked him up with IVs to help him recover.

Peace says the experience was A LOT different from the American hospitals he was used to -- but says the fans were very supportive.

Bobby Brown is in emotional turmoil ... as he deals with the prospect of losing a daughter, he celebrates something that he's telling his grieving family ... his wife is pregnant.

We've learned Bobby's wife, Alicia Etheredge, is 4 months pregnant ... something he hasn't shared with many of his relatives. The timing is awful, but it can't be hidden as they sit in hospital waiting rooms.

We're told Bobby and Alicia have shared the happy news as they sit vigil for Bobbi Kristina, whose brain function has perilously diminished.

There's lots of stress ... as we reported there's a feud brewing between Bobby's family and Whitney's. But we're told so far Alicia is handling it well.

Tough situation ...

Suge Knight is out of the hospital where doctors treated him for a blood clot and he's back in familiar territory ... the slammer.

TMZ broke the story ... Suge suffered chest pains after his court appearance Tuesday and was rushed to the hospital, where doctors determined he had another blood clot. We're told he was given blood thinners and now his condition can be treated in the jail infirmary.

Suge's blood clots have been an ongoing problem since he was shot 6 times last summer. He almost died several weeks later from a blood clot while in a Las Vegas jail.

Suge Knight had way more than a panic attack after court Tuesday ... he was having an intense physical reaction to a potentially fatal blood clot ... TMZ has learned.

TMZ broke the story ... Suge began experiencing chest pains after he was taken from the holding area at the courthouse to the hospital. Suge family sources tell us, doctors determined he's suffering from yet another blood clot -- like the one that almost killed him in a Vegas jail 3 months ago.

We're told the clots began forming after Suge was shot 6 times last summer at 1OAK during VMA weekend.

Our sources say Suge has now been moved to Long Beach Memorial where doctors have put him on blood thinners ... but it's clearly a serious situation.

Suge won't be able to make a fast break ... he's been handcuffed to the bed and is under 24/7 watch.

A somber Bobby Brown showed up at Emory University Hospital Wednesday to visit his daughter Bobbi Kristina ... who is still in medical peril after Saturday's near drowning.

Bobby did not answer the photog's questions about his daughter's condition. As we reported, her signs improved earlier in the week -- Bobbi Kristina's brain swelling went down and her eyes are showing some movement. But doctors say they can't predict the outcome since she was without oxygen for somewhere between 2 and 5 minutes as she lay face down in her bathtub.

Bobbi Kristina was transferred to Emory Tuesday because the hospital is renowned for treating brain injuries.

Bobby is also dealing with family drama. We're told he and his family are not getting along with Whitney Houston's relatives, and he also has beef with Nick Gordon.