One, a local event, is covered eloquently here, by Hal Bryan.
Another comes from Ohio, where a pilot, very active in the Flight Simulator and real world aviation community, was killed in a mid air collision. If you're interested in aviation, Flight sim, or both, please consider donating to the Richard Harvey scholarship fund, named for the lead developer of TRI's flight sim FLY!, or to the Mark Schaden Memorial Fund.
If more details, or a fund becomes available for Aviation High School or its students, I'll let you know.
Sympathy is extended to all.