2 year old Taylor Stalker of Owego has been at Upstate Medical Center in Syracuse since Saturday.
A Tioga County Sheriff's investigator said she had severe head trauma and bruises on her body.
The Sheriff's office charged 21 year old Joshua Clapper with 1st degree assault.
Investigators say on Saturday, Clapper was babysitting his girlfriend's children in Owego.
They believe he injured the 2 year old girl.
Clapper remains in the Tioga County Jail.
Investigators say they're still investigating, and more charges could follow in the case.
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