State Police said Clayton Mibroda beat his 20-day old daughter Natalee at a Bolivar home in December 2011. She later died at Indiana Regional Hospital.
Investigators testified that Mibroda changed his story several times and told them his son was his "favorite" child. One trooper said that the father told them the little girl was always crying and he was frustrated he couldn't figure out what was wrong.
Testimony resumes tomorrow in Westmoreland.