Las Vegas Mass Shooting Victims Remembered One Year Later

It's been a year since the deadliest mass shooting in modern U.S. history, and a scheduled speaker at a sunrise ceremony in Las Vegas is calling it a tragedy of grand scale.

Mynda Smith's sister was one of 58 people killed when a gunman in a high-rise hotel rained gunfire into a crowd of 22,000 attending an open-air country music concert.

Smith says she's been able to reach loved ones of almost all the dead in California, Nevada, 12 other U.S. states and Canada. She says that for some, it may be too soon for hearts to be healed.

Survivors, victims' family members, first-responders and elected officials will offer prayers, songs, speeches and the release of 58 doves as Las Vegas begins a day of memorials and other events.