(Beaver Dam) A three-day jury trial began Wednesday for a Beaver Dam man who is accused of violently shaking an infant resulting in serious injuries. Raymond Keyser is facing one felony count of Physical Abuse of a Child – Recklessly Causing Great Bodily Harm. After jury selection yesterday, prosecutors called a detective and sheriff deputy to the stand to testify about the February of 2015 incident when Keyser was looking after the eight-month-old. He told investigators that he was watching television while sitting on a bed and the infant was unsecured in a car seat next to him. The 24-year-old says he got up from the bed, bumped the car seat. The infant fell face-first onto the ground and the car seat struck the child’s head. The infant was flown to UW Hospital in Madison. The UW Child Protection Team disputes Keyser’s version of the story saying that the extent of injuries were more consistent with either shaking a child or “slamming the child down onto a soft surface, such as a mattress.” If convicted, the charges carry a maximum sentence of 15 years in prison.