State police in Mississippi say a murder suspect shot a Jackson police detective and then shot himself at police headquarters.
Mississippi Bureau of Investigation spokesman Warren Strain said Friday that Jeremy Powell shot Detective Eric Smith before killing himself, in the first official description of how the men died.
The state agency took over the investigation from the Jackson Police Department.
The men died in a third-floor room Thursday where Smith was interrogating Powell after Powell's arrest.
Hinds County Coroner Sharon Grisham-Stewart said she would perform autopsies on Friday.
Powell had been arrested in connection with the stabbing death earlier this week of a 20-year-old Jackson man.