The son of a man who died mysteriously in police custody more than five years ago has threatened to kill the Longview police officers he blames for his father’s death, according to a Longview police report.

Coroner Brett Dundas said Friday that Kevin Wright Sr., 39, died of “excited delirium” on Nov. 30, 2005, but the manner of death is undetermined. Toxicology reports showed that Wright Sr. was not intoxicated and had prescribed levels of prescription medication in his system, Dundas said.

On Feb. 28, while he was at St. John Medical Center for treatment, Kevin Dewayne Wright Jr., 20, repeatedly told medical staff he wanted to kill the officers responsible for his father’s death, the report said.

Longview police booked Wright, a transient, into jail Thursday on suspicion of five counts of felony harassment. Bail has been set at $100,000.

Five Longview police officers were present when Wright Sr. died after struggling with them. Staff at the Cowlitz Tribal medical office, where Wright Sr. had begun vocational rehabilitation, called 911 after the 6-foot-4, 304-pound man became violent and destructive.

Although officers used Tasers while trying to subdue Wright Sr., an autopsy showed that Wright’s heart was beating some time after the Taser shock, thereby ruling out Tasers as the cause of death, according to an investigation by the Cowlitz County Sheriff’s Office.

Wright Sr.’s health insurance expired two weeks before his death, making it impossible for him to afford his antidepressants or his blood pressure medication, his wife said at the time. His blood pressure was in the normal range at the time of his death, according to paramedics and emergency department staff at St. John Medical Center.