NPCs composing that spawngroup :

a_raving_lunatic (50%)

a_savage_mutant (50%)

NPCs spawning around that spawngroup :
(Max range : 100)

citymist_7, range=37 (-261,255,40)

a_deranged_madman (50%)
greater_war_boned_skeleton (50%)

citymist_20, range=78 (-183,169,3)

citymist_28, range=54 (-183,221,3)

a_raving_lunatic (100%)

citymist_32, range=74 (-222,153,4)

citymist_111, range=25 (-262,227,39)