The Boston Phoenix reports that Mikey Welsh has died at the age of 40.
Welsh played bass in Weezer from 1998 to 2001. Around the same period he was also Juliana's touring bassist. He performed on the recording of Bed and as the bassist in Juliana's Pony he contributued to Total System Failure, where he has four co-writing credits.
He left the music industry in 2001 and has since been an artist.