Update: Authorities have three women associated with Nikko Jenkins in custody.
Nikko's sister, Erica Jenkins, 23, was arrested Thursday on a warrant for criminal mischief. After arriving at the jail, she reportedly got into a scuffle and was booked on suspicion of assaulting a jail inmate.
Christine Bordeaux, 39, is being held at the request of the U.S. Marshals Service.
Nikko's mother, Lori Jenkins, 46, was arrested Friday afternoon on suspicion of tampering with a witness.
Authorities took into custody a man just released from prison in the hopes of interviewing him about several unsolved deaths, including the Andrea Kruger slaying.
Nikko A. Jenkins, 26, of Omaha was released from prison July 30 after serving a nine-year robbery sentence. He was taken into custody Thursday evening on an unrelated arrest warrant charging him with terroristic threats.
No law enforcement official has publicly named Jenkins as a suspect or person of interest in any of the slayings. Jenkins has not been charged in any of those cases.
However, a law enforcement official said area law enforcement agencies have been intensely investigating Jenkins, including conducting surveillance on him throughout this week.
Nikko A. Jenkins
The official said detectives were seeking to question him in connection with the death of Kruger, a 33-year-old mother of three whose body was found about 2 a.m. Aug. 21 at 168th and Fort Streets. She had been shot multiple times.
Kruger's gold 2012 Chevrolet Traverse was found in an alley near 43rd and Charles Streets. Someone had tried to set the vehicle on fire.
The Douglas County Sheriff's Office and Omaha police have been comparing the slaying of Kruger with other unsolved murders in Omaha, including two other sets of slayings that occurred in the 10 days before Kruger's death:
» The shooting death of Curtis Bradford, 22. He was found Aug. 19 near 18th and Clark Streets.
» The shooting deaths of Jorge Cajiga-Ruiz, 29, and Juan Uribe-Pena, 26. Their bodies were found Aug. 11 inside a pickup in Spring Lake Park.
Authorities haven't released many details on the deaths. However, a source said all four victims were shot in the head.
At the same time, the source said, authorities don't have a concrete connection between the seemingly disparate sets of slayings that occurred across the city.
Reached Thursday night, Douglas County Attorney Don Kleine, Douglas County Sheriff Tim Dunning and Omaha Police Chief Todd Schmaderer declined to comment.
The Omaha police warrant sought Jenkins on allegations that he threatened to kill a female acquaintance and her family. The woman also recounted a phone call in which Jenkins threatened to send “demonic forces” to her mother's home, according to a police report.
A conviction on terroristic threats would be punishable by 20 months to five years in prison.
Jenkins was charged with armed robbery in 2003 when he was 16. He served almost 10 years for two felony robbery convictions and use of weapon to commit a felony.
Jenkins knew Curtis Bradford. The two met in prison while Bradford was serving time for burglary.
They posed in a picture together that was posted Aug. 18 on Facebook. Bradford was found dead the next day. A man found Bradford wearing a hoodie and gloves near a detached garage at 1804 Clark St. just before 7 a.m.
On June 24, 2002, Jenkins carjacked and robbed a 21-year-old man at gunpoint near 42nd and Seward Streets. The vehicle was later abandoned at 31st and Hascall Streets.
On Aug. 26, 2002, Jenkins carjacked a 20-year-old woman at gunpoint at a J-N-D grocery store near 24th and Redick Streets, according to police reports.
Jenkins asked the woman for a ride. He got into her backseat, pulled out a shotgun and ordered her to drive.
The woman drove to 22nd Street and Grand Avenue. Jenkins told her to get out of the vehicle and she did. Then he drove off with her car. The vehicle was recovered two days later.
Jenkins had been in the Kearney Youth Center since 2001 and committed the crime while he was in Omaha visiting his family, according to a police report.