Trump has a history of being very generous in such situations.
Not a stretch, IMO, to consider that the whole situation, from the riots to the $2 million bond, was a political maneuver in an election year. Trump, then may feel some responsibility for what Kyle had to endure, not directly, rather that Kyle was in the wrong place at the wrong time because of efforts to elect Bidan.
I figure security and college will be offered. That's my take going on on what I think Trump does, and has done in the past.
Another angle is that the bail release was after the election. What's the chance that some of the money was put up by Trump, via proxies? Might be an angle where, if Trump did put up some bail money, that they really did need to wait until after the election.
IIRC, there was no other group getting bail up. That's not Wood's fault.
Media articles at the time credited Wood with getting the money, together, too. Does not seem to be any question that Wood, indeed, through his efforts, got Kyle out of jail, when no one else could.