YARMOUTH, Mass. (WPRI) — The parents of slain Yarmouth K-9 Officer Sean Gannon on Wednesday spoke for the first time since their son’s death, calling for change to prevent these kinds of tragedies from happening.

Gannon, 32, was a New Bedford native and a graduate of Bishop Stang High School. He was shot and killed last month while serving a warrant at a home in Marstons Mills on Cape Cod.

Patrick and Denise Gannon said in an interview with Fox 25 in Boston that they are living their worst fear and will never be the same since the loss of their son.

“Sean would not be saying to us, ‘mourn longer,’ he’d be saying get up and do something,” Patrick Gannon said.

“He’s always in my ear saying, ‘Mom, you know, I’m okay, you have work to do. Get up, go on. I’m here, it’s okay,'” Denise Gannon added.

Speaking from their New Bedford home, the Gannons said they want to change the criminal justice system that allowed the man accused of killing their son to stay out of jail.

“I don’t think this is at all what our founding fathers of the United States envisioned,” Patrick Gannon said. “I think we’ve gone way out of control.”

“Fix it, because it’s backwards, it’s grievous and someone else will be hurt the way we’ve been hurt,” Denise Gannon added.

Thomas Latanowich, 29, is charged with Gannon’s murder and was ordered held without bail during his arraignment in Barnstable District Court last month.

Yarmouth police now refer to Latanowich only by the number of charges he has accrued over several years, which adds up to 125. Latanowich has a lengthy criminal background and is well-known to police across Cape Cod.

The Gannons said Sean knew how dangerous his job was, but he always had a passion to serve and protect the community.