Wasn't he implicated in that fraud case last year?
Advanced English Dictionary
+verb[VN] 1 ~ sb (in sth) to show or suggest that sb is involved in sth bad or criminal: He tried to avoid saying anything that would implicate him further. 2 ~ sth (in / as sth) to show or suggest that sth is the cause of sth bad: The results implicate poor hygiene as one cause of the outbreak. Idioms: be implicated in sth to be involved in a crime; to be responsible for sth bad: Senior officials were implicated in the scandal.
Collocation Dictionary verb
deeply, heavily, strongly
These groups are very strongly implicated in the violence.