I just came across this article. Now I'm wondering if it could be something like the Ruppert Massacre.
http://www.daytondailynews.com/news...tragedy-stirs-memories-of-ruppert-fami/nrD6g/
The day after Easter, Hamilton awoke to the traumatic news that James Ruppert, then 41, had fatally shot 11 members of his family, including his mother, Charity; his brother, Leonard Jr.; his sister-in-law, Alma; and their eight children — Leonard III, 17; Michael, 16; Thomas, 15; Carol, 13; Ann, 12; David, 11; Teresa, 9; and John, 4.
The murders took place in his mother’s home on Minor Avenue in the city’s Lindenwald neighborhood. Ruppert was convicted of two counts of murder and received a verdict of not guilty by reason of insanity for the other nine killings. He was sentenced to 11 life sentences, and is in the Allen Correctional Institute in Lima awaiting his next parole hearing.