A state trooper shot 12 times by a murder suspect is suing Washington County's 911 system, the sheriff and others, contending dispatchers failed to alert officers that James Tylka was armed, suicidal and had just shot his wife when they radioed for police to find him on Dec. 25, 2016.

Nic Cederberg, the only state trooper patrolling in Washington County, lacked critical information when he made tactical decisions to chase Tylka "that he would not otherwise have made, was exposed and subjected to an unanticipated lethal attack and suffered critical, life threatening and permanently disabling injuries,'' the federal suit says.

Cederberg is seeking $20.6 million in damages for past and future pain and loss of his quality of life. His wife, Portland police Officer Haley Shelton, who provided five months of around-the- clock care for her husband, is seeking $10 million in damages, OregonLive reports.

Kelly Dutra, director of Washington County Consolidated Communications Agency, said Tuesday she couldn't comment about the pending litigation.

Cederberg remains a trooper with state police, working a modified assignment to accommodate his recovery,  state police Capt. Timothy Fox said. 

Read the lawsuit here.