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FBI: Dayton mass shooter fantasized about killing for years

Vigil for Dayton shooting victims
Posted at 9:05 PM, Nov 29, 2021
and last updated 2021-11-29 21:05:14-05

DAYTON, Ohio — The FBI says Dayton mass shooter Connor Betts fantasized about mass shootings and murder-suicide for at least a decade before his 2019 attack that left nine dead.

The FBI says Betts didn't share specific details with friends or family about his fantasies.

The agency said Monday that a phenomenon known as bystander fatigue may account for why no one reported Betts to authorities.

The term refers to people becoming inattentive to concerning behavior by people they've known for a long time.

The FBI concluded its investigation Monday by saying Betts acted alone and a variety of mental health issues contributed.