FBI to analyze suspected BTK package
(CNN) -- Police in Wichita, Kansas, sent a package found in a park to the FBI laboratory to determine if its contents are linked to the notorious BTK killer.
A man found the package -- a garbage bag bound with rubber bands -- during a walk Monday night and took it home and opened it, police said.
Inside, the man saw the driver's license of one of the BTK killer's suspected victims so he turned the package over to local television station KAKE. The station turned the package over to police.
A report from KAKE showed a clear plastic bag containing a Kansas driver's license with the name Nancy Fox on it and a wrapped object. Fox was killed December 8, 1977, in her home.
Police told CNN on Wednesday that the man who found the package in the park is "just a citizen" and is not a suspect.
Investigators said it is not the first time the killer has placed an item in a public place for someone to find.
The serial killer is blamed for eight murders in the Wichita area between 1974 and 1986. From 1977 until 1979, police and news media received letters from a writer claiming to be the killer.
The killer gave himself the BTK name -- the initials standing for "bind, torture and kill," his preferred method of killing.
After 25 years of silence, the letters resumed last spring, with BTK linking himself to the eighth killing, and divulging what he said was more information about himself.
Police released more details contained in the letters in early December, including his claim that he was born in 1939, which would make him 64 or 65.
He said his father died in World War II, and his grandparents raised him while his mother worked. He said his hobbies include hunting, fishing and camping.
Around 1960, he said, he attended military school, then served in the military. After he was discharged in 1966, he repaired copy machines and business equipment and had a female Latina acquaintance named Petra, he said.
He added that he had solicited prostitutes and had a lifetime fascination with railroads and trains.
Authorities said they believe the man frequented the Wichita State University campus during the 1970s, and that he used fake IDs to gain access to people's homes.