This is A little deep but I don't have anyone to talk to.

My exs dad murdered 2 family members then shot and killed himself 2 days ago. I was with my ex for off and on 10 yrs. but I've known him scence I was 13. I am now 32. He is my sisters husbands brother also. Yes we dated brothers. I'm married now with someone else and pregnant with husbands baby. So u could say I have moved on. And so has he. This of course has affected my sister her husband of course cause it's his dad and the children greatly! My nefu is even named after him. But this has also effected me. I knew the father and also the family members very well! My husband is upset at me saying I shouldn't care he is a murderer! I can't sleep I'm stressed I'm haveing very high anxiety. Being pregnant doesn't help but am I wrong for letting it effect me so much ? Help advise plz !