Report: Daughter of BTK suspect alerted police
59-year-old Kansan accused of killing 10
WICHITA, Kansas (CNN) -- The daughter of the man whom Wichita authorities arrested in the notorious BTK serial killings approached police with her suspicions and voluntarily gave them a blood sample, Wichita television station KAKE-TV reported Saturday night.
KAKE quoted sources as saying the blood of 26-year-old Kerri Rader, whose father, Dennis, was arrested Friday, came back as a 90-percent DNA match to the BTK killer, though the sources did not elaborate.
The sources told KAKE that police began surveillance on Dennis Rader after the results were determined.
Police did not comment on reports about the daughter, the station said.
CNN could not immediately confirm the sources' information.
Rader, 59, was arrested without incident shortly after noon Friday during a traffic stop in Park City, just north of Wichita, police said.
According to the Wichita Eagle newspaper, Rader had worked as a compliance supervisor for Park City in charge of animal control, nuisances, inoperable vehicles and general code compliance since about 1990. He was a one-time president of a Lutheran church and is a father of two, KAKE reported.
Police plan to file 10 counts against Rader in connection with the killings between 1974 and 1991 -- eight counts of first-degree murder and two other homicide charges -- Lt. Ken Landwehr, commander of the task force investigating the case, and Sedgwick County Sheriff Gary Steed said Saturday. (BTK-related killings)
None of the charges have yet been filed with Sedgwick County District Attorney Nola Foulston.
Initially only eight killings were linked to BTK, but Steed said police will file homicide charges for the previously unsolved killings of two Park City women: Marine Hedge in April 1985 and Delores Davis in January 1991.
In letters to the police and media, the killer called himself BTK, for "bind, torture and kill," a pattern he has followed with most of his victims.
The pending first-degree murder charges are related to these killings:
January 1974: Julie and Joseph Otero are strangled in their home, along with two of their children, Joseph Jr. and Josephine.
April 1974: Kathryn Bright, 21, is stabbed to death in her home.
March 1977: Shirley Vian, 24, is tied up and strangled in her home.
December 1977: Nancy Fox, 25, is tied up and strangled in her home.
September 1986: Vicki Wegerle, 28, was strangled in her home.
Foulston said the death penalty will not apply in the BTK case because it was reinstated in 1994, three years after the last known killing attributed to BTK.
Victim's son reacts
For Davis' son Jeff, Rader's arrest ended a long nightmare. His mother was killed in her home, and her body dumped in rural Sedgwick County.
Davis told KAKE, "Probably the lingering emotion is revulsion."
"It's going to take a while to reconcile the fact that my mom spent her last few minutes on this Earth at the hands of the lowest form of social sewage on the ladder of evolution.
"It's hard to accept that's what she last saw before she died."
Davis said he received a call from the sheriff Friday night but didn't know about Rader until the news conference Saturday.
Arrest announcement
Members of the victims' families attended a news conference at Wichita City Hall where Rader's arrest was announced.
"The bottom line: BTK is arrested," police Chief Norman Williams said to loud applause.
Several Wichita and Kansas authorities also spoke, congratulating each other for their work in the investigation, which was re-ignited last year after the killer re-emerged with a letter on March 17 -- the anniversary of Vian's death -- to taunt investigators again.
KAKE, which received notes and packages from the BTK killer over the years, said Rader's arrest came after police obtained a DNA match. Some of the packages sent to the media and police contained photos taken at crime scenes and jewelry stolen from victims.
Police, who searched Rader's house Friday, have not released details on the role DNA might have played in his arrest.
Wichita Mayor Carlos Mayans thanked police, who "have dedicated thousands and thousands of hours investigating these senseless and horrendous series of crimes that have plagued our city."
"It has been a very long journey that has brought us to this day," Mayans said.
Kansas Attorney General Phill Kline said the arrest is a victory for the victims.
"Due to the dedication of a community, and the commitment to duty of literally hundreds of law enforcement officers across this nation, victims whose voices were brutally silenced by the evil of one man will now have their voices heard again," he said.
Communicating with police
The BTK killer sent many notes to Wichita police and local media in the past 31 years -- and even reported Fox's killing to police dispatchers.
From 1977 to 1979, police and news media received letters from a writer claiming to be the killer. That was followed by 25 years of silence, leading some to believe BTK had died.
In March 2004, his communications resumed, when he linked himself to the eighth killing and divulged what he said was more information about himself.
Last week, the FBI confirmed that two letters found in Wichita were authentic communication from the killer. The driver's license of one of the slain women was found, as well.
Wichita Police today arrested Dennis Rader, who is suspected of being the BTK killer. BTK, an acronym for "Bind, torture, kill," was the name the serial killer gave himself after killing eight people between 1974 and 1986 in that manner. The killer was thought to have disappeared for 25 years before he resurfaced in March of 2004. He was later linked to two unsolved murders, which took place in 1985 and 1991. Police Chief Norman Williams publicly announced the guilt of Mr. Rader prior to any trial preparations when he said to reporters ''"The bottom line, BTK is arrested."''

The commander of the task force investigating the BTK killings, Lt. Ken Landwehr, said Rader had been arrested after being pulled over in a routine traffic stop. Authorities had questioned a ''"person of interest"'' Friday, which led them to a Park City home just outside Wichita and eventually to the identity of BTK.

BTK was notorious not only for his brutal way of killing people, but for taunting police and other investigators with letters throughout his 12-year killing spree. Investigators had run out of leads until police received a letter from BTK in March of last year.

Police have said they charge Rader with eight counts of first-degree murder and two other homicide charges. According to CNN, police were able to use Rader's daughter's DNA to find Rader. DNA of close family members has been used in a few previous cases to identify suspects, through a new technique known as  familial searching.