Police said Saturday that the man they hoped could tell them what happened to Mandy Matula died before he could be questioned about the 24-year-old Eden Prairie woman's disappearance.
David M. Roe, 24, shot himself in the head outside the Eden Prairie police station Thursday and was pronounced dead early Friday morning, the Hennepin County medical examiner said Saturday night.
Matula vanished after leaving her family home in Roe's car late Wednesday.
Without a witness or suspect to guide them to Matula or her body, police and volunteers renewed their search of the area near Miller Park on Saturday, finding an unfired bullet they believe may be linked to Roe.
Katie Bengston, a spokeswoman for Eden Prairie police, said investigators were not disclosing whether the caliber of the bullet matched the handgun that Roe used to shoot himself Thursday afternoon, before officers could approach his car in the police station parking lot. He had agreed to talk with a detective about Matula, whose family had reported her missing at 8:30 a.m. that day.
Ballistics tests were underway Saturday on the bullet and on Roe's gun. Police said they were also conducting DNA tests on the bullet and on several other pieces of possible evidence found Saturday.
Authorities confirmed shortly before noon that Roe had died of his injuries, but released no further details, saying they were still in the process of calling family members and preparing for an autopsy.
Roe's family didn't return messages on Saturday.