MACON, Ga. (AP) – Nearly 50 years ago in a Birmingham, Ala., church, five little girls were getting ready for that day’s youth service when an explosion shattered the room they were in, killing four of them.

The surviving girl was trapped in the rubble, unable to move or see, screaming for her sister, who never responded. Later, a father identified the body of his 11-year-old daughter, who had worn her new dress to church that day and was last seen getting the sash tied.