Megan Thee Stallion's ex-best friend is the key witness who, all of a sudden, doesn't seem to remember much about the night in question ... which amounted to a wild day in court.
Kelsey Nicole Harris -- who was the other woman in the car with Tory Lanez and MTS during the 2020 shooting -- caused fireworks Wednesday when she was called to the stand by the prosecution ... almost immediately asking for immunity in the case, and receiving it for her testimony.
Despite this, Kelsey proved to be an incredibly difficult witness during direct examination ... attempting to invoke her 5th Amendment rights constantly, and often asking the judge if she had to answer certain questions -- hesitantly doing so when she did actually talk.
What she definitively testified to Wednesday, under oath, was that she did NOT shoot Megan Thee Stallion -- contradicting the defense's theory that she could've pulled the trigger.
Now, as for who she says did the shooting ... unclear. At one point, Kelsey did testify that Tory threatened to shoot her (Kelsey) -- but later on the stand, Kelsey seemed to backtrack ... saying sworn statements she'd given investigators in the lead-up to this trial weren't entirely truthful, despite being played back recordings of her saying just that back in September.
Prosecutors clearly wanted her to point the finger at Tory -- but so far, Kelsey has not done that ... and it could have a disastrous impact on the prosecution’s case.
Of course, another way to look at this ... by process of elimination, if Kelsey is denying doing the shooting -- and with the driver never having been accused whatsoever -- one could surmise there's only one person left who could have fired the shots -- Tory Lanez.
Time will tell how this all impacts the jury -- but so far, there's been a lot of confusion kicked up in just the three days of the trial so far. And, it's not even close to over yet.