The incident was all caught on camera, but police said this is the second time this month the family had a run-in with the suspect.
A homeowner attacks his friend, who was over visiting during the quarantine, with a hammer.
Witnesses described the violent scene, "He was screaming crazy words, like 'I'm killing everybody.' He was just screaming crazy things."
The suspect was employed doing maintenance work at the school, according to the district government.
A man is accused of threatening a young boy. He repeatedly told the child he wanted to bash his head in with a sledgehammer.
The hammer attack on a 16-year-old girl waiting in line at a McDonald's was captured on cellphone video by another patron.