MYNORTHWEST NEWS

Pierce County man pleads guilty to killing pregnant ex-girlfriend in 2020

Nov 15, 2022, 7:10 AM

(KIRO 7)...

(KIRO 7)

(KIRO 7)

A Pierce County man accused of killing his pregnant ex-girlfriend in 2020 pleaded guilty to murder charges on Monday.

Colin Patrick Dudley waived his right to a trial, pled guilty, and was sentenced to 320 months of imprisonment.

Follow this link to read additional stories from KIRO

Dudley was arrested in 2020 for the disappearance and death of Kassandra Cantrell, who was his ex-girlfriend. She was also pregnant. Dudley was the father.

Cantrell was found wrapped in trash bags on a hillside in University Place. An autopsy found she was stabbed and suffered skull fractures. Her car, a white Mazda, was found on East 25th Street in Tacoma.

Dudley initially told detectives he hadn’t seen Cantrell in years and didn’t know anything about her disappearance, according to charging documents.

Detectives later discovered surveillance footage showing a man parking Cantrell’s car, walking to another parking garage, and driving away in a truck, according to documents.

The truck belonged to Dudley, according to documents.

Documents also show Cantrell’s cell phone was tracked, showing investigators it was in the area of Dudley’s home around the time she disappeared.

Cantrell also bought 50-gallon trash bags on the same morning Cantrell disappeared, according to charging documents.

Dudley pled not guilty when he was arrested in September 2020. On Monday, he pled guilty and waived his right to make a statement before sentencing.

320 months was recommended by prosecutors after “months of negotiation,” prosecutors said in court on Monday.

However, family members of Cantrell favored a trial over a plea. Cantrell’s mother, father, and twin brother all spoke in court and asked the judge for a criminal trial.

Robert Cantrell, the twin brother of Kassandra Cantrell, said he and his family still have unanswered questions about Kassandra’s death and “want the full truth” to be publicized through trial.

Marie, the mother of Kassandra, said she felt like Dudley was “choosing his punishment” and said a trial “is what Kassandra would’ve wanted.”

Follow this link to read additional stories from KIRO

MyNorthwest News

_spokane wildfires...

Luke Duecy

Convicted felon arrested in connection with Old Trails Fire in Spokane

Governor Bob Ferguson said federal resources are on the way to help Washington battle 17 major wildfires burning more than 260,000 acres.

5 hours ago

pierce transit (1)...

Nate Connors

Chill out during this week’s heat wave courtesy of Pierce Transit

It's become a regular service to Pierce County residents during the excessive heat bursts we often get throughout our summer season.

7 hours ago

Gifford Pinchot National Forest (1)...

Julia Dallas

Gifford Pinchot National Forest issues emergency closures for wildfire

The Gifford Pinchot National Forest has issued an emergency closure order for the High Lava Fire.

8 hours ago

washington...

James Lynch

Crime drops across every major category in Washington, but officials warn the full picture is more complicated

Crime declined across every major category in Washington in 2025, with sharp drops in murders, violent crime, and property crime.

8 hours ago

seattle homelessness...

Frank Lenzi

Seattle, King County plan to reclaim nearly $160M in homelessness contracts from KCRHA

The King County Regional Homelessness Authority (KCRHA) will survive despite calls from some Seattle and King County leaders to dissolve it.

9 hours ago

King County Metro...

KIRO 7 News Staff

King County Metro to add 9 new bus routes and 3,000 additional weekly bus trips to schedule

King County Metro is adding nine new bus routes and more than 3,000 additional weekly bus trips to its schedule.

9 hours ago

Pierce County man pleads guilty to killing pregnant ex-girlfriend in 2020