I don't think I would either honestly. Think about it....as soon as they released the video he was going to be target #1 for some folks regardless of what he does or doesn't do. That's just the way things shake out in these situations. If they really weren't friends and suddenly he starts showing up at all the events, there is a camp out there that would call him suspicious (i.e. Scott Peterson) and use that against him. Plus lets assume the same people that think he's target #1 (strictly hypothetical here) are also part of the vigils, searches, etc., anything, and I do mean anything he says or does during said events would be scrutinized, studied and judged.
JMO, MOO and all that.