The Boston Strangler is a name given to the murderer (or murderers) of 13 women in the Boston area, in the U.S. state of Massachusetts, in the early 1960s. The crimes were attributed to Albert DeSalvo based on his confession, details revealed in court during a separate case, and DNA evidence linking him to the last murder victim. Since then, parties investigating the crimes have suggested that the murders (sometimes referred to as "the silk stocking murders") were committed by more than one person. On October 27, 1964, a stranger entered a young woman's home posing as a detective. He tied the victim to her bed, sexually assaulted her, and then suddenly left, saying "I’m sorry" as he went. The woman's description of her attacker led police to identify the assailant as Albert DeSalvo. When his photo was published, many women identified him as the man who had assaulted them. Earlier on October 27, DeSalvo had posed as a motorist with car trouble and attempted to enter a home in Bridgewater, Massachusetts. The homeowner, future Brockton police chief Richard Sproules, became suspicious and eventually fired a shotgun at DeSalvo. DeSalvo was not initially suspected of being involved with the stranglings. It was only after he was charged with rape that he gave a detailed confession of his activities as the Boston Strangler. He initially confessed to fellow inmate George Nassar. Nassar reported the confession to his attorney F. Lee Bailey, who also took on DeSalvo's case. The police were impressed at the accuracy of DeSalvo's descriptions of the crime scenes. There were some inconsistencies, but DeSalvo was able to cite details which had not been made public. However, there was no physical evidence to substantiate his confession. As such, he stood trial for earlier, unrelated crimes of robbery and sexual offenses in which he was known as "The Green Man" and "The Measuring Man" respectively. Bailey brought up the confession to the stranglings as part of his client's history at the trial in order to assist in gaining a "not guilty by reason of insanity" verdict to the sexual offenses, but it was ruled as inadmissible by the judge. DeSalvo was sentenced to life in prison in 1967. In February of that year, he escaped with two fellow inmates from Bridgewater State Hospital, triggering a full-scale manhunt. A note was found on his bunk addressed to the superintendent. In it, DeSalvo stated that he had escaped to focus attention on the conditions in the hospital and his own situation. Immediately after his escape, DeSalvo disguised himself as a US Navy Petty Officer Third Class, but the next day he gave himself up. Following the escape, he was transferred to the maximum security Walpole State Prison where he was found stabbed to death in the infirmary six years later. His killer or killers were never identified.