Weld detectives arrest 2nd suspect in November 2021 Johnstown homicide

Published on January 27, 2022


An Odessa, Texas man was booked into the Weld County Jail this week on multiple charges stemming from a homicide in November outside of Johnstown.

Seferino Hermosillo, 36, was arrested Jan. 6 in his hometown by the Odessa Police Department. He was extradited Wednesday to Weld County and booked into the jail on charges of second-degree murder, illegal discharge of a firearm, menacing, second-degree kidnapping and false imprisonment, all felonies. He is being held on $500,000 bond.

Hermosillo was wanted by the Weld County Sheriff’s Office following the Nov. 21 murder of Gilbert Gutierrez near Johnstown. He is the second suspect arrested in the case. No other suspects are being sought in the investigation.

Marco Gutierrez-Herrera was arrested Nov. 22 during a multi-agency SWAT operation in Julesburg that also resulted in the rescue of a hostage.

The investigation is still active. Anyone with information about this case is asked to call the Weld County Sheriff’s Office Investigations tip line at (970) 304-6565.

Anyone with information regarding this or any other crime is asked to call the Weld County Sheriff’s Office at (970) 356-4015 or Northern Colorado Crime Stoppers at 1-800-222-TIPS (8477). Tips can also be submitted through the Crime Stoppers website at www.NoCoCrimeStoppers.com. Those submitting tips through Crime Stoppers that lead to the arrest and filing of charges on a suspect(s) may be eligible for a cash reward.