I just found this on In Flames wikipedia page.
Former members
Name Instrument Membership Reason for departure
Jesper Stromblad Guitar 1993-2010 To face my demons
http://en.wikipedia.org/wiki/Jesper_Stromblad
On February 12, 2010, Jesper announced that he was leaving In Flames permanently.
figured we could stop talking about deathcore and move on to a good band.