Sam Haskell Jr. Pleads Not Guilty in Triple Murder Torso Case

Sam Haskell Jr. is officially denying culpability in his triple murder case this week -- and the guy continues to go shirtless before a judge ... this as officials have fears of self-harm.

The murder suspect had an appearance in court Friday in Los Angeles, where he and his lawyers officially entered not guilty pleas to the 3 counts of murder Haskell is facing. Also of note ... the fact he was trotted out in front of everybody with his bare chest exposed again.

Remember, he was rocking the same sorta look when he first appeared in court last month ... something correctional officers relegated him to because of what they said were suicidal thoughts he was expressing.

Now, more than a month later of his being in custody ... he's still shirtless, something his lawyers griped about Friday -- claiming their client has not indicated he intends self-harm upon himself. Despite this, hizzoner denied Sam a shirt ... offering a self-harm vest instead.

Doesn't sound like Sam took the judge up on that ... and now, he's due back in court next month. It's unclear what exactly he's wearing behind bars, but when he's appeared in court ... he's been shirtless both times.

Remember, prosecutors allege Sam killed his wife, Mei, as well as her parents Yanxiang and Gaoshan. TMZ obtained surveillance video that appeared to show Haskell dumping something off at a dumpster shortly before he was arrested.

He remains in custody without bail.