Lt. Roland De Los Santos said that Ryan Goforth, 5, and his father had bought matching Captain America T-shirts — and that while Ryan has his on today, "underneath his uniform, so does Darren."
ABC News says a man claiming to be Flanagan sent a fax that arrived after the killings, and that the same person also called to identify himself as the shooter.
Epidemiologist Gary Slutkin has taken the lessons he's learned fighting TB and HIV/AIDS and applied them to stop the spread of gun violence. Because like those diseases, violence is contagious.
A California city with a crime problem — shootings, drug dealing and gang activity — finds that getting more kids and cops playing sports together regularly in the park can make a big difference.
This year, at Emory University's global health challenge, students had to come up with clever solutions for a pressing problem. Only it wasn't a superbug. It was the extreme violence in Honduras.
Private companies used to make their own rules about guns on their property. But a growing number of states have adopted laws allowing workers to keep guns in their cars in the workplace parking lot.
New York Police Commissioner Bill Bratton says tensions in the city are at their worst since the 1970s. He spoke two days after Ismaaiyl Brinsley shot and killed two police officers in New York.