To answer the question of what Matthew Broderick should do, I would need to have some information about what the victims/family want. Do they want an apology and public statement? They should get one. Do they want to be left alone? They should be.

The thing is YOU DO already have this information. They want to be left alone. You want to violate that and contact them to apologize for… contacting them before?

This isn’t hard dude. You aren’t Matthew Broderick. You didn’t kill anyone. You have an unhealthy fascination with this person from the very beginning of your story and you are working VERY hard to convince yourself that exercising it is in fact a moral imperative for you.

It is not. The only thing you can do for these people is leave them alone and digest your own feelings about it. Get therapeutic help, please.