Idk if my husband feels closure

My husband met up with a guy today and I was with him. My husband's teenage son died 10 years ago. He was jumped and beaten badly because he was gay and he died in the hospital. My husband was in therapy for 6 years and he was doing fine until founding our one of the boys who did it got out on parole. My husband started drinking really heavily and he's back in therapy and currently going to AA. This guy reached out because he's trying to make amends and wanted to apologize to my husband in person. I told him we didn't have to but my husband wanted to. We met up with him and the guy started saying he had so much hate because of the devil and in prison he found God and he goes to church now and he's sorry he hurt my husband. The whole shabang. My husband started laughing at this man and said "You murdered for being gay and you think telling me you joined a religion that discriminates against people like my son is gonna make me happy?" The guy said he didn't mean to kill him. My husband said bullshit. It was 7 against 1. They cracked his skull on concrete. They meant to kill him. My husband said he bets some people in his church secretly applaud what he did. That he could care less that he found forgiveness fr a bunch of people that if his son were alive they would fight to take away his rights. Then my husband told him he used to dream about killing him and all those other boys and what he was gonna do to them. I told my husband we can go but he kept going. It got disturbing. Saying he wanted to torture them and let them die slowly then said the sad thing is he knows if his son was alive he would stop him and my husband told this person to never contact him again. He's a murderer and he can live with that the rest of his life. I was worried my husband would star drinking. He didn't. He did say he's gonna get his tattoo touched up which is of him and his son. I don't know if this was the closer he needed. Maybe I should bring it up in therapy?