WACO -- A Waco man is now in jail after assaulting his girlfriend and endangering the baby she was holding.
It happened at an apartment complex on the 4400 block of Lake Shore Drive on December 1, 2011.
The man began assaulting his girlfriend while she was holding her three month old baby causing injury to both the girlfriend and the baby.
No word on why the fighting started.
"The baby was being held by the mom, the boyfriend was actively assaulting the mother. She accidentally dropped the baby due to the assault. And the baby received a contusion, abrasion to her head," Sgt. Patrick Swanton with Waco Police Department said.
Alan Michael Matoska, 22, is now in McLennan County jail.
Police tell us the girlfriend was badly injured but did not file a police report.
The baby did go to the hospital but was released shortly after.