For those of you unaware of the rumour, a myspace bulletin and eventual Wikipedia entry started the internet hoax that Mr.MacKaye had been killed in a hit-and-run accident. The people behind the hoax were thorough, including a real hospital (Baltimore's St. Agnes Hospital) and have repeatedly changed the Wikipedia entry as well. The entry in the internet encyclopedia has been locked to prevent further misinformation.
According to Ian himself:
I am happy to report that I am not dead.