After a months-long investigation police went to the suspect's house on South Stone Avenue near Downtown at about 5 p.m. to serve an arrest warrant. He was accused of assaulting an 8-year-old girl who was not a relative.
When they got to the suspect's door, he was uncooperative, said Diana Lopez, of the Tucson Police Department.
"He would not open the door for police and made several statements of suicide by cop," she said.
When he did emerge a few minutes later he was "armed with a weapon and posed a deadly threat to officers," Lopez said.
She said that officers gave numerous commands for the man to drop his weapon, but he would not. Officers opened fire, killing him.
She said he was pronounced dead at a local hospital. There is no word on what the weapon was or the man's identity.
Stone, between 14th and 17th streets, remains blocked off as homicide and internal affairs officers continue their investigation..
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