Police tie 7th victim to serial killer's DNA

The DNA of a suspected serial killer was linked Tuesday to a seventh woman murdered in Milwaukee, as part of a major investigation into unsolved homicides stretching back 23 years. The State Crime Laboratory reported that the suspect's DNA has now been found on Florence McCormick, a 28-year-old prostitute strangled on April 24, 1995, police said. The other homicides occurred in 1986, 1995, 1997 and 2007 - all but one on the north side of Milwaukee. The unknown male suspect may be linked to more murders. Testing continues on DNA from about two dozen other unsolved prostitute homicides.