I don't see really any likelihood that Carter is taken in the top 12.
Legal status aside, take a step back a bit.
What team is going to want a player who while street racing with a teammate, witnesses him have a violent crash, then just .... drives away and hides. Leaving him there literally to die.
What kind of team is going to go, "Oh yeah, we want that guy on our team."? Seriously what veteran on any club even in the XFL is going to want THAT.
The dude is seriously roster poison at this point. Honestly, I'm not seeing him as a potential day one pick. Even Frank Clark, who was a first round potential player -- dropped to the end of R2 for what was assuredly domestic violence. Barely even disputed. Which in the pantheon of bugbears for an NFL player is many circles of hell above 'letting your teammate die'.
Yeah no. There are some sins a locker room will abide. Leaving a mate to die is not one of them.