I would either get other family members and have an intervention or leave a mail him a brochure… or several until he gets the point.

Just come out and tell him straight out, look dude, you have anger issues and you definitely need to seek anger management…

When things are quiet and you’re alone with this person tell him/her you think they have a serious problem controlling their anger and you think they need some help.

Then suggest you go on-line together to see what’s available.

Just stop participating in the conversation the minute he starts loosing control. Simply say “I will not be talked to like this. When you can discuss this calmly we can talk.” Then walk away. Be respectful but consistent about this. He might never change but you can set boundaries about what is acceptable to you and what is not.

You can’t tell an angry person to take anger management. It will make him more angry. Do not engange with him when he is upset. Stay quiet to defuse his anger. This will only help short term. It’s up to him to get help on his own.

really stay out of it! I know your tring to help but that’s a hard subject.. Maybe talk to his partner about it and have her ask him or a closer relitive…
if you are that close realitive then by all means pull him a side when he is in a good mood not when he is up set.. and just tell him how you feel don’t tell him or say you should do … state how you feel…
then ask him if he would take a class.. again don’t say you should say soething like
i know this sounds gay but would you help me feel better and think about taking an anger managment class? i know it would take up some of your time but i feel it might be helpful.. you know what never mind you can think about it but forget i ask…

as hard as it might be you want to say that in acting form… don’t say it to fast but don’t let him slip a word in otherwise…
good luck

Find a local group and ask them to send him a brochure.