A man was arrested Tuesday after his homemade cannon blasted through his mobile home in a remote community outside of San Diego, killing his girlfriend and narrowly missing three other adults and a 4-year-old child, Fox News reported.
He was first taken to the hospital to receive treatment for shrapnel wounds, then was taken to jail, the Pioneer Press reported.
Police are still unsure whether the incident is an accident or whether some sort of motive is involved, Fox News reported. A neighbor, John Arnold, told U-T San Diego that "He liked experimenting with guns, and it looks like this experiment went bad."
