LANCASTER, Pa. -

A man whose infant daughter was fatally shot on Christmas Eve has been charged in her death and will plead guilty, officials said during a news conference Monday.

G. Scott Davis, 35, of East Lampeter Twp., has been charged with involuntary manslaughter and other offenses, for a shooting that investigators said was "accidental."

Lancaster County District Attorney Craig Stedman said Davis was "messing" with a new 9mm handgun shortly after 2 p.m. on Dec. 24 when he pulled the trigger, striking his 2-month-old daughter, Kestyn.

Davis reportedly did not think there was a bullet in the gun's chamber.

"The depth of his despair is unfathomable," said Jeff Conrad, Davis' attorney.

Investigators said all evidence suggested that the incident was unintentional, but not unpreventable. Stedman said that Davis was an inexperienced gun handler and had only used a handgun two times prior to the shooting death.

Now, officials hope the tragedy will raise awareness for proper, safe gun handling and education.

"No matter where you fall on the spectrum of firearms, I think we can all unite and agree and make a difference and that’s in training and education," said Stedman. "And that will actually save lives and prevent another Kestyn Davis [death]."