Here in Brazil we had an incident years ago about this. Forgive any inaccuracies, it's been a while.
A man was called in by his girlfriend to her house, who she broke up with. He then pulled out a gun and held her and her best friend hostage for days at gunpoint. Police was called in, of course, and they spent days trying to negotiate with him so he'd let them in.
Of course, this is all the media talked about while it happened. One show host specifically, called Sonia Abrão, somehow managed to call the guy ON LIVE TELEVISION and had the most casual conversation ever, trying to get him to turn himself in.
Some time later, he let her friend go and police decided to raid the place. Only the friend survived.
This resulted in a documentary called Quem Matou Eloá? (Who Killed Eloá?) where her family and feminist figures talk about how her death was more than just a jealous boyfriend, and the media had a significant part of the guilt.