His lawyer is Jim Boren, one of the more high profile criminal attorneys in Baton Rouge. He charges a lot of money for his services and he doesn't win all his cases. I know of at least two of his clients who went to prison. On the other hand, if La'el is undrafted and then is completely exonerated of any involvement he would be a highly sought after free agent. That could work out better for him than even being drafted in the first round. I don't think that will happen, though. If he falls past the third round some team would take him even if he was suspected of being a serial killer and a baby rapist.
He should drop out of the draft entirely. Take care of his business, if exonerated sign somewhere as a free agent.
The problem is, I am pretty sure you can't drop out of the draft. You can choose not to sign with a team and wait a year to become a free agent, but the team has its rights to sign you and the other teams cannot. Dave Winfield got drafted in three different sports even though he fully intended to play baseball. The Saints could draft you if they wanted.
In baseball when it gets down to the 30th or so rounds the selections sometimes get pretty silly. I think somebody once drafted Garth Brooks in the last round. On the other hand, the Dodgers drafted Mike Piazza in the 30th round only because Tommy LaSorda was doing it as a favor for Piazza's dad. He turned out to be a hall of fame catcher.
It depends. Collins being questioned by the police being leaked a day before the draft cost him $9-15 million dollars. If there were not some damn good reasons for doing so, the motives of whoever did this may be questioned. With that kind of money on the table, some lawyer will sue somebody.
Yes, but the person drafted has absolutely no obligation. It only is binding to the collective league holding the draft. Alas, you wouldn't be able to sign with the Cowboys.