More details emerge in Alliance standoff case

Andres Gonzalez

By:  Newsroom

The Nebraska State Patrol says the suspect shot and killed in Alliance had admitted to killing a Denver man in 2011.

The Nebraska State Patrol says 27-year-old Andres Gonzalez told negotiators during Tuesday's standoff that he killed 38-year-old Joshua Bullock, of Denver. Investigators believe Gonzalez killed Bullock around Dec. 1, and disposed of the body in a remote area of Dawes County in the Nebraska Panhandle. Officials say Bullock's burned pickup was found by a rancher in a ravine near Chadron on Dec. 14. Chadron is 50 miles north of Alliance.

A search for Bullock's remains is under way.  Authorities have arrested Gonzalez's girlfriend, 19-year-old Rose Siefke, of Hemingford, on a charge of being an accessory to a felony.

Bullock's burnt out pickup was found by a rancher in a ravine southeast of Chadron on December 14. 2011. The 38-year old with ties to the Alliance and Chadron areas was last seen the afternoon of December 1, 2011 after visiting family members in Alliance.

Investigators with the Nebraska State Patrol, in conjunction with the Dawes and Box Butte County Sheriff's Office had been investigating Bullock's disappearance.  His information had been entered into the Nebraska Missing Persons Clearinghouse and the National Missing and Unidentified Persons System, a “Help Find Josh Bullock” Facebook page was also established by friend and family.