After an investigation, its been revealed that NFL linebacker Jovan Belcher was arguing with his girlfriend Kasandra Perkins about the paternity of their child right before murdering her and killing himself.

Belcher's mother Cheryl Shepherd reportedly told investigators that Belcher was not sure whether or not he was the father of their 3-month-old child. Shepherd was in her son's house when he killed Perkins, and called the police when he left.

The child, Zoey, will be raised by Perkins' family and will receive more than $1 million from the NFL as Belcher's beneficiary.