MILWAUKEE - The alleged shooter in Sunday's rampage at a Sikh temple in Oak Creek, Wisconsin, died of a self-inflicted gunshot wound.

That is one piece of new information released by the FBI in a press conference updating the investigation into the mass shooting that killed six and injured four.  

FBI Special Agent in Charge Theresa Carlson says accused shooter Wade Michael Page fatally shot himself in the head after being wounded in a hail of bullets fired by responding offiers. It was previously believed that Page had been killed by an officer's bullet.

Carlson says federal officials had not opened any investigation into Page before Sunday's shooting. She says investigators are interviewing dozens of people who have known Page as they work to determine for a possible motive.

Meanwhile, three of the people injured in the mass shooting remain hospitalized in critical condition.

A spokeswoman for Froedtert Hospital says the three patients are still in the intensive care unit.

Six people were fatally shot at the Sikh Temple of Wisconsin Sunday in Oak Creek. Police say four were injured, including one person who was treated and then released from the hospital.

Oak Creek Police Lt. Brian Murphy is among the three who remain hospitalized. He was one of the first responding officers and was shot 8 or 9 times as he was tending to a shooting victim outside the temple. Another officer then shot the gunman, identified by authorities as Wade Michael Page.

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