JACKSONVILLE, Fla. -- Deputy Dennis Urban, a 17-year veteran of the Clay County Sheriff's Office, was off duty on Saturday when he died after being involved in a motorcycle wreck. Two days later, Urban's co-worker and friend spoke out in memory of the fallen deputy.

"The last thing I said to him was, 'Have a good weekend, and I'll see you on Monday,'" said Urban's partner, Deputy Robert Russell.

However, when Monday came around, reality of what happened the weekend before sunk in for Russell.

The deputy said he got into his empty patrol car realizing his partner would never be there again.

"At first it was shocking. I didn't want to believe it. It was hard," Russell said. "Every time you go to an accident like that, we always wonder when's it going happen to somebody that close to you. It's always in the back of your mind."

For the first time since he started with the CCSO, those fears came true.

"I got the call Saturday afternoon," Russell said.

According to the Florida Highway Patrol, the 57-year-old Urban was killed when a car pulled into the path of his motorcycle on U.S. Highway 441.

Urban, whose patrol zone was primarily the Keystone Heights area, was known as Grandpa around the sheriff's office.

"Guidance, help or whatever it was, he was there," Russell said.

Not only did Urban introduce Russell to a career in law enforcement six years ago, he ultimately became the younger officer's partner.

"He was just a great guy -- somebody that you respect and look up to that has a wealth of knowledge," Russell said.

A funeral service for Urban will be held on Thursday at 11 a.m. at Russell Baptist Church in Green Cove Springs.