Albert DeSalvo F. Conley said he expected investigators to find an exact match when the evidence is compared with his DNA. On July 19, 2013, Suffolk County DA Daniel F. Conley, Mass. Attorney General Martha Coakley and Boston Police Commissioner Edward F. Davis announced that DNA test results proved DeSalvo was the source of seminal fluid recovered at the scene of Sullivan's 1964 murder. Though DeSalvo was conclusively linked to Mary Sullivan's murder, doubts remain as to whether he committed all of the Boston Strangler homicides — and whether another killer could still be at large. When he confessed, people who knew
Michael Hughes (serial killer) detectives linked him to DNA samples from the victims using new forensic technologies. The case of Deanna Wilson, 30, who was found in a garage on August 30, 1990, was later dropped, but was used by prosecutors to establish Hughes' pattern. Hughes killed 15-year-old Yvonne Coleman on January 22, 1986. Her body was found in a park in Inglewood, California. The other two were killed in Los Angeles. Verna Williams, 36, was discovered in a stairwell on May 26, 1986. She was considered at the time to be a victim of the prolific, then-unidentified serial killer known as the Southside