(TMZ) Murdered Cali Swag District member M-Bone may have been targeted after a Twitter war over a girl ... sources connected with the group tell TMZ. Our sources say M-Bone's friends have been in touch with cops, telling investigators after he got back to L.A. from his tour, he got involved with a girl. M-Bone's friends say a guy who lived in the woman's building didn't like the relationship, and allegedly began threatening M-Bone via Twitter.
We're told M-Bone did not back down and the two men started cyber smack-talking each other. TMZ has learned ... the black car in which M-Bone was shot is registered to the woman. Cops are trying to figure out why M-Bone was driving the woman's car and whether the cyber war is in any way related to the shooting. more on this story