It's a shame that people consider murder to deal with personal issues. It's good that the killer wasn't hired, though. As for Bitcoin, I don't think the means of payment should be emphasized. What's bad is the killer part, not the Bitcoin part. But when Bitcoin is mentioned in such stories, the content of the story casts a shadow on BTC reputation as well. As if killers aren't hired with USD.
Bitcoin has nothing to do with this incident. Consider that she could have paid fiat to the killer too. The focus should not be on what is paid to the killer, the main point is women who did this wrong thing by hiring a killer. I don't think coin desk should emphasize on this story much as it is not related to crypto currencies.
So true, as said by @mk4, it is just a headline because bitcoin is included. I guess this also shows us how bitcoin is not actually an anonymous crypto currency since they could still track the girl. I am confused with the other information given though.