WATERVLIET, N.Y. (NEWS10) — The Watervliet Police Department is mourning the loss of one of their own. The police department said Sgt. Marc Langlais died unexpectedly.

He joined the force in 2004 and was promoted to sergeant in 2015. He spent nearly two decades with the department.

“It’s a shock to all of us,” Watervliet Mayor Charles Patricelli said. “I don’t think we’ve even been able to comprehend the loss we have right now. The family is still reeling with the loss themselves. We’re just devastated by it. He was a remarkable guy, and we’re going to miss him a lot.”

Sgt. Langlais was a law enforcement training instructor, and outside of work, those close to him said he loved movies and trivia.

He leaves behind a wife and children.