'He loved his job:' Sheriff's office remembers Cowlitz County Deputy Justin DeRosier

Image of Deputy Justin DeRosier from the Cowlitz County Sheriff's Office.

KALAMA, Wash. – A Cowlitz County Sheriff’s Office deputy was shot and killed overnight Saturday while responding to an incident outside of Kalama.

Authorities identified the deputy as 29-year-old Justin DeRosier.

He leaves behind his wife and infant daughter.

“There are few cops who want to be cops more than Justin did. He loved his job, and he was incredibly good at it,” Cowlitz County Undersheriff Darren Ullmann said. “Five-month-old Lilly is always going to know what an incredible man her father was.”

RELATED | Local agencies send condolences for fallen Cowlitz Co. deputy

“Deputy DeRosier was a Kelso boy, his family has deep roots here,” said Cowlitz County Sheriff Brad Thurman.

The sheriff’s office said DeRosier graduated from Kelso High School in 2008. He went on to Washington State University in Pullman, Washington where he graduated in 2012 with a degree in criminal justice.

DeRosier’s career in law enforcement started in 2013 when he was hired by the Whitman County Sheriff’s Office, which services the Pullman area. He served there for three years on the SWAT team and as a boat operator.

He returned home in 2016 and joined the Cowlitz County Sheriff’s Office as a patrol deputy. Officials said he also worked as a boat operator, and was set to join the drug task force as a narcotics investigator on July 1, 2019.

The local community held a candlelight vigil for Deputy DeRosier at 7 p.m. at Lake Sacajawea in Longview. Attendees were encouraged to wear blue.

A memorial service will be held for Deputy DeRosier, however, it has not been scheduled.

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