We would advise extreme caution in having any contact with him. We agree with iGottaBme that if there is a particular response you are expecting/hoping for from him, you have to be prepared to not get it. If not getting that response will be harmful to you, then you may be better off not being in contact with him. As horrible as it is to contemplate, especially for a family member who is supposed to care about you, his response may be to not care at all about how you feel. Or he may even be happy about how upset you are. These responses could be extremely hurtful, we wouldn't want you to be unprepared for them.
If you do decide to contact him, we hope you will be sure to do so in a safe environment, and that you make sure you have a way to end contact if you ever decide to. We hope whatever decision you make will help you feel peaceful. ~Emma