Killing mob A mexican street gang based out in the south los angeles area, in the city of watts.killing mob or kmob also consist of three small cliques: ,106 mbz (moboyz) 115th, cmz (criminals) which are based out in san bernardino county.killing mob originated in the mid 80's as taggers/stoners and became an establish gang in the mid/late 90's.members of the killing mob can also be found in colorado,,oregon and washington state. Kmob; km; 187xmob;all represent the killing mob gang.rivals are the grape st watts;village boys;south los;florencia 13;hacienda bloods 211 NH crip and lapd.