ONEIDA COUNTY, N.Y. -- We're learning more about the events leading up to the death of Oneida County Sheriff's Deputy Kurt Wyman.

Oneida County Sheriff Robert Maciol held a press conference this morning.} Maciol said Deputy Wyman was one of two deputies first arriving to the scene of a reported domestic dispute just after 8 p.m. in the Hamlet of Knoxboro.

Maciol says Christian Patterson had threatened to harm himself and his live-in girlfriend. The girlfriend and her son were able to escape.

Oneida County's Emergency Response team, equivalent to a SWAT team was called to the scene. At around 2 a.m. members of that team fired hard foam munitions at Patterson in an attempt to disarm him. Patterson was knocked down.

At that point, Sheriff Maciol says Wyman, who was providing light to the response team, advanced toward Patterson with a TASER, a decision Maciol says he made on his own.

Patterson was still able to shoot Wyman in the neck and fire two other shots.

Law enforcement then returned fire.

"I can only surmise that Deputy Wyman saw an opportunity to preserve Christian Patterson's life, to protect his fellow deputies, and to defuse the situation acting as he did. Again as we heard through the ceremony two days ago, he's a hero and he saw an opportunity, I can't stress that enough, to protect life, and in doing so he gave his own," said Maciol.

Maciol is heading up a comprehensive review. He will be in charge of fact finding...to further determine the events of the night. That review will be released at a later date.

Once Patterson is medically cleared he will be with be charged with aggravated murder.

Wyman is survived by his wife Lauren, his 18-month-old son and newborn daughter.