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Washington State Patrol trooper killed in crash on I-5 near Marysville, suspect in custody

The suspect, a 32-year-old Lynnwood man, was arrested for vehicular homicide investigation, the Snohomish County Sheriff's Office said.

MARYSVILLE, Wash. — One person is in custody after a trooper was struck and killed on  Interstate 5 near Marysville early Saturday morning.

The Snohomish County Sheriff's Office said the suspect was traveling southbound on I-5 at a high rate of speed near 136th Street North just before 3 a.m. when he allegedly collided with a Washington State Patrol trooper's vehicle on the shoulder. 

The sheriff's office said the suspect's vehicle was struck by a van after it came to a rest. The driver of the van was transported to the hospital with non-life-threatening injuries and the passengers were not injured.

The suspect, a 32-year-old Lynnwood man, was arrested for vehicular homicide investigation, the Snohomish County Sheriff's Office said.

KING 5 does not name suspects until they are officially charged in court. 

Officials are still investigating whether drugs or alcohol played a role in the fatal incident. On March 2, a search warrant was obtained to administer a blood test on the suspect to check for possible impairment. 

The trooper, identified as 27-year-old Christopher Gadd, had served with the Washington State Patrol for two and a half years and leaves behind a wife and 2-year-old daughter.

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"I want [people] to think about the fact that a man, a good man, a father, a good husband, and outstanding son gave his life in service to the people of the great state of Washington,” Chief John Batiste said. "That's what I want them to remember." 

RELATED: 'We will never forget': WSP identifies trooper struck, killed on I-5

The Washington State Department of Transportation said all southbound lanes have reopened after being closed for more than nine hours during the investigation.

This is a developing story. Check back for updates. 

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