9 6 8 ▁and ▁by ▁May ▁placed ▁Ham pton ▁on ▁the ▁Bureau ' s ▁" A git ator ▁Index " ▁as ▁a ▁" key ▁milit ant ▁leader ." ▁ ▁In ▁late ▁ 1 9 6 8 , ▁the ▁Ra cial ▁Mat ters ▁squad ▁of ▁the ▁F BI ' s ▁Chicago ▁field ▁office ▁rec ru ited ▁William ▁O ' Ne al ▁to ▁work ▁with ▁it ; ▁he ▁had ▁recently ▁been ▁arrested ▁twice ▁for ▁inter state ▁car ▁the ft ▁and ▁imp erson ating ▁a ▁federal ▁officer . ▁In ▁exchange ▁for ▁having ▁his ▁fel ony ▁charges ▁dropped ▁and ▁a ▁month ly ▁st ip end , ▁O ' Ne al ▁agreed ▁to ▁in fil tr ate ▁the ▁B PP ▁as ▁a ▁counter int elligence ▁oper ative . ▁ ▁O ' Ne al ▁joined ▁the ▁Party ▁and ▁quickly ▁rose ▁in ▁the ▁organization , ▁becoming ▁Director ▁of ▁Chapter ▁security ▁and ▁Ham pton ' s ▁body guard . ▁In ▁ 1 9 6 9 , ▁the ▁F BI ▁Special ▁Agent ▁in ▁Char ge ▁( S AC ) ▁in ▁San ▁Francisco ▁wrote ▁Ho over ▁that ▁the ▁agent ' s ▁investigation ▁had ▁found ▁that , ▁in ▁his ▁city ▁at ▁least , ▁the ▁Pan thers ▁were ▁primarily ▁feed ing ▁breakfast ▁to ▁children . ▁Ho over ▁respond ed ▁with ▁a ▁mem o ▁imp lying ▁that ▁the ▁agent ' s ▁career ▁prospect s ▁dep ended ▁on ▁his ▁supp lying ▁evidence ▁to ▁support ▁Ho over ' s ▁view ▁that ▁the ▁B PP ▁was ▁" a ▁violence - pr one ▁organization ▁seeking ▁to ▁over throw ▁the ▁Government