Effects of violence - Essay intro

Im working on my intro to my essay effects of violence but i want to make it stronger any ideas

Breaking News, "A 13 year old boy was shot in the head, while playing outside with his friend," or "Six innocent people were shot and killed, when a gunman shot into a crowd," Incidents like this make headlines too often. What breaks into someone to make them want to kill another human being? People who are violent often grow up in abusive home, are exposed to violent media, and feel as though they need to prove themselves.

You could start it off as

Whether or not exposure to violence causes increased levels of aggression and violence in young people is the perennial question of research. Some experts argue that fifty years of evidence show that exposure to violence causes children to behave more aggressively and affects them as adults years later.