(CNN)More than 35 years after a 12-year-old girl disappeared in Greeley, Colorado, a former Idaho gubernatorial candidate has been indicted in her death.
Steven Pankey was indicted in the kidnapping and killing of Jonelle Matthews, who went missing in December 1984, Weld County, Colorado, District Attorney Michael Rourke said Tuesday.
Pankey was arrested without incident Monday at his home in Meridian, Idaho, according to Rourke.
According to court documents, Pankey was was indicted by a grand jury on October 9 on charges including two counts of first degree murder, second degree kidnapping and crime of violence charges related to Jonelle's kidnapping and death.
He is being held without bond in Ada County Jail pending extradition to Colorado, Rourke said.
Rourke said there is "no definitive" DNA link between Pankey and the girl's remains.
CNN has not been able to determine if Pankey has legal representation.
Pankey 'intentionally inserted himself in the investigation'
According to the indictment, Pankey lived about two miles from Jonelle's home at the time of her disappearance and about 10 miles north of where her body was found decades later.
The court document also said Pankey "watched school children walk home from" the middle school the victim attended and said he owned a gun the year she disappeared.
The indictment also states Pankey was in contact with authorities following Jonelle's disappearance, and "intentionally inserted himself in the investigation many times over the years claiming to have knowledge of the crime which grew inconsistent and incriminating over time."
Pankey also searched for information on Jonelle's death in newspapers as well as on the radio and internet, the indictment said.
In a September 2019 interview with the Idaho Statesman, Pankey, who ran in the Idaho Republican primary for governor the year before, said he was under investigation for the killing and that police searched his Twin Falls home. Pankey added he didn't know Jonelle or her family.
Chief hopes arrest will bring healing to family
Greeley, Colorado Police Chief Mark Jones said Tuesday's announcement was "36 years in the making."
Jonelle's remains were found by a worker at a pipeline site in July 2019. The cause of death was "determined to be a gunshot to the head," and the case was ruled a homicide, the indictment said.
In August 2020, the Weld County District Attorney's office announced a grand jury was investigating her death.