A 15-year-old boy who had been arguing with his mother opened fire on deputies as they arrived at their home, killing one and critically wounding the other, authorities said. The teen was later found dead.

Floyd County Coroner Greg Balmer confirmed Tyler Dumstorf's death, but neither he nor a state police spokesman would say how the teen died. Authorities said they would provide more details at a news conference set for Tuesday afternoon.

State police had identified Dumstorf as the suspected shooter as they searched for the boy after the shooting Monday evening. When officers entered the home shortly after midnight, they found him dead on the floor, state police Sgt. Jerry Goodin said.

"The whole community here should be enraged," Goodin said. "There's a lot of us who are heartbroken."

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Deputy Frank Denzinger, a four-year veteran of the sheriff's department, died hours after the shooting, Sheriff Darrell Mills said. Deputy Joel White, who has been with the department 17 months, was hospitalized in critical condition Tuesday morning, the department said.

Denzinger and White went to the home about 10 miles west of Louisville, Ky., on a report of a confrontation between the boy and his mother, sheriff's Lt. Frank Loop said.

Loop said the boy's mother was not injured.

Goodin said officers arrested two people as they conducted their search and investigated the shootings, but he declined to discuss how they were involved.

"I don't have a lot of answers tonight," he said early Tuesday. "There's a lot of questions I still don't have answers to."

Scores of officers had spent hours combing the rural subdivision and nearby woods before finding the boy dead in the home. Residents of about 25 houses were evacuated during the search.

Goodin would not say what might have caused the confrontation or whether officers found a weapon with Dumstorf.

Dumstorf had just completed his freshman year at Floyd Central High School in nearby Floyds Knobs, said school spokesman Dave Rarick. He offered no other information about the boy, citing federal privacy laws.

School officials would cooperate with the investigation, said Dennis Brooks, superintendent of the New Albany-Floyd County Consolidated School Corp., during a brief news conference on Tuesday.

"I do not know why the student did what he did," Brooks said.

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