I want to abuse an abusive*aggressive unhinged person. This facebook user who is sort...

I want to abuse an abusive*aggressive unhinged person. This facebook user who is sort of a friend, not through my choice..slanders innocent people on facebook without their knowledge to his fellow peers. He also slanders and makes up false allegations against businesses. His latest slander is The Queens Pub in Leire..he mentions the barman put his fingers in his drink whilst serving him..which is totally untrue..This pub has a five star rating and I live opposite the building..the landlady who I do not know personally..but I do know that she has worked extremely hard in building her business. I know these references made by Martin Mushen are false..I know because I was there when he got served. On numerous times he has slandered me on his facebook..stating that men who ride Harley's cannot get good looking women, referring to me and my husband..he post pictures of guns, nudity..Last year he was verbally abusing on facebook a bike club called the Fosse Riders. I know these people and they are very good. Why is this person still on facebook..giving fake news about other people, spreading malicious gossip that is untrue.