From Longman Dictionary of Contemporary Englishhomicidalhom‧i‧cid‧al /ˌhɒməˈsaɪdl◂ $ ˌhɑː-/ adjective KILLlikely to murder someone a homicidal maniac
Examples from the Corpus
homicidal• He was a homicidal and delusional sociopath, she said.• The robber bridegroom could be a drug pusher in-stead of a homicidal cannibal, for instance.• Even if he is murdered by a homicidal maniac he has chosen to be at a certain place at a certain time.• But none as far as I know is a homicidal maniac.• I've never before seen cadaveric spasm in a case of homicidal manual throttling, and it's interesting.• They made him sound like a homicidal monster.• Casually mention that your homicidal six-foot boyfriend is expected in fifteen minutes.