Gunman hospitalized after ‘targeted’ attack in Ohio

Mother of Texas school gunman begs for forgiveness

Confrontation in Zacatecas leaves 14 gunmen down

Gunman kills federal judge's son at her NJ home

16 dead in Nova Scotia shooting rampage

Canada shooting: Death toll rises to 18

At least 16 killed in Nova Scotia mass shooting, shooter also dead

19-Year-Old Sought in Mighican Campus Shooting

Deadly shooting on Michigan college campus

Celebrities react to Florida school shooting

Texas Church Shooting: At Least Two Dozen Parishioners Killed |

Texas church shooting leaves at least 25 dead

Colorado Walmart Gunman Makes First Court Appearance

At least 50 dead, 406 injured in Las Vegas shooting

Congressional Shooting: How It Happened

Pelosi chokes up over congressional shooting