A man arrested on Friday and suspected of being the Kansas BTK - "Bind, Torture, Kill" - serial killer has been charged with 10 counts of murder.
Dennis Rader is listed as a municipal worker in Park City
Dennis Rader made his first court appearance in a video link from his cell on Tuesday.
Kansas police are now reopening investigations into murders with similarities to those already attributed to the BTK killer.
The 10 killings took place in the Wichita area between 1974 and 1991.
SUSPECTED BTK VICTIMS
Marine Hedge, 53
Delores "Dee" Davis, 62
Joseph Otero, 38, his wife, Julie, 34, and their two children
Kathryn Bright, 21
Shirley Vian, 24
Nancy Fox, 25
Vicki Wegerle, 28 (pictured)
The suspect's DNA has been linked to at least one murder, officials said.
The BTK killer coined his own nickname in letters claiming responsibility for the murders.
Most of the victims were women killed in their homes but the first murder attributed to the BTK killer was that of an entire family in January 1974: Joseph Otero, 38, his wife, Julie, 34, and their two children.
Mr Rader is listed by Park City's website as a compliance supervisor, dealing with such things as animal control and broken-down cars.