The massacre in Newton, Conn., has prompted Michigan Gov. Rick Snyder (R) to consider vetoing legislation allowing concealed weapons in schools. 

"We're looking at the whole situation due to Connecticut, not just the fact that there's a bill out there," the governor told the Associated Press. "What that legislation says will be looked at through the lens of all that's happened."

He said it's possible he could veto the legislation. "The shooting gives you clear cause to say, would this be appropriate?"Under this legislation, gun owners with extra training could carry concealed firearms in schools. Private property owners would be free to ban guns on their land; public schools would not. 

Snyder added that a personal experience also factored into his thinking: the 1981 Good Friday shooting at a dorm at the University of Michigan. The governor was a resident adviser at the time; he pulled the fire alarm, he said, while two others went to deal with the gunman. Two students were killed. 

“I haven’t publicly talked about this much,” Snyder said. “It’s one of those things you just live with. If you ask in context, this is something that has additional impact on me because of my personal history.”