Joseph Patterson was arrested and charged with second-degree murder and manslaughter in the death of Tyrese Ruffin, the 2-year-old son of NFL Minnesota Vikings running back Adrian Peterson's son. The child's mother was living with Patterson when Patterson called 911 to report a choking. But when the unresponsive toddler was brought to the hospital, doctors determined his head injuries were the result of an assault, not an accident. Doctors said the child sustained four blows, and that the blows likely caused his death. Prosecutors want to tell the jury about a 2012 case with a different child, as well as about two assaults on adult domestic partners.