George Hassell. He married his brother's wife and took on her eight kids. He and his new wife began fighting over his "affair" with his step-daughter/niece....who I think was 13. He killed his wife with a hammer. Then went on to kill everyone else in the house, all eight kids, in various methods. He was remorseless and diagnosed a sociopath. This photo was taken in prison, after his conviction. He was electrocuted in 1928.