Why Were They Killed? Mystery Surrounds Murder of Family as 2 Are Charged in Their Brutal Deaths

8-Year-Old Boy's Body Found 'Hidden' in Ohio Home Where 3 Adults Were Also Killed: Cops

Dad Who Allegedly Drowned Daughter Phoned Wife At Her Office To Tell Her: Cops

Police Find Chilling Note Left By Las Vegas Gunman Detailing Bullet Trajectories

Feds Question Vegas Gunman's Girlfriend: 'He Never Said Anything to Me'

Registered Sex Offender Arrested in 1980 Cold Case Killing of Pregnant Mom

Vegas Gunman Stephen Paddock's Family 'Dumbfounded' After Massacre Leaves At Least 58 Dead

Witnesses Recall Chaotic Nightmare as Las Vegas Concert Gunman Kills More Than 50

Mom-of-Two Charged With Murdering Boyfriend After Flagging Down Police

Children of Woman Killed in Church Shooting Reveal Their Anguish: 'There's No Understanding It'