In the wake of Sunday's deadly mass shooting at a Michigan church , one worshipper who escaped the attack described the fear he felt running from gunfire and looking for his family.

"That was the scariest moment of my life, not knowing if my family was OK," Paul Kirby said Monday on "CBS Mornings."

Kirby's wife and children were with him at the Church of Jesus Christ of Latter-day Saints in Michigan's Grand Blanc Township when a gunman rammed his vehicle into the church and began shooting just before 10:30 a.m. Sunday. Kirby said church members were attending a service when they heard "a loud boom coming from the back wall of the chapel."

"Several of us men decided to get up and go outside to look at what happened, just in case somebody ran off the road and hit the building,"

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