I think this is foul play.
If the original narrative is true (I don’t think it is), she left with two men. Her text message indicated that she felt in danger, and it would be too much of a coincidence for her to die of an overdose after that.
In the more likely scenario (as I see it), she was never at the bar in the first place. Whatever happened, happened before her friend even arrived. That text message is a game changer, as it would have been an effort to misdirect.
Had this not been nefarious, and she died from a drug overdose, then I don’t see the need for all the subterfuge. That sort of thing happens quite often, and standard procedure is typically to dump the body on the side of the road or out in the open.
These people just want the body away from them, so they don’t wind up with criminal charges.
The fake text message, and the two big black men story, doesn’t follow the typical pattern. I think it’s a sign of this being a homicide.
It could always be panic, but I’m not a fan.