Career
Chicago Police questioned him about the infamous Saint Valentine"s Day Massacre in February 1929, on the suspicion that Keywell acted as a lookout for the killers, however Harry had a cast-iron alibi for the day. After his arrest for involvement in the Collingwood Manor Massacre on September 16, 1931, Keywell was sentenced to life in prison at Marquette, Michigan and was eventually paroled at the age of 54 on October 21, 1965. He had a spotless prison record for 34 years before his life sentence was commuted.
