DEDHAM – A man shot his wife and daughter early yesterday before killing himself in the family’s Dedham home, authorities said.

William Spada, 53, allegedly killed his wife, Patricia, 51, at about 1:30 a.m. yesterday.

Their daughter, Deidra, 26, was shot in the head and was in critical condition at a Boston hospital. Her boyfriend, who lived at the home, called police and said William Spada was shooting people, officials said.