My next door neighbour in BKK found out his son was dead because on the local news it showed his son lying on the road in a pool of blood with his throat cut and face beaten in. His shirt was open with multiple cuts and stabs to the chest and stomach. By all accounts the blood was still warm when the press arrived. Nice! I doubt he (my neighbour) will ever stop having the nightmares.
And so how is that any different from if the parents had been first to arrive on the scene themselves? The press coverage didn't cause or worsen the violence.