The boy, who has now been identified as 2-year-old Tyrese Robert Ruffin, died on Oct. 11, after being hospitalized for severe head injuries.
Patterson, 27, was charged the same day with aggravated assault and aggravated battery.
According to USA Today, Lincoln County State’s Attorney Tom Wollman said about possible new charges, “We are continuing to gather reports at this point.”
NFL.com reports Wollman wants to review the child’s autopsy and other information prior to seeking new charges.
According to reports, police responded to a call from an apartment in Sioux Falls on Oct. 9 and found Tyrese unresponsive when they arrived on scene.
USA Today reports Patterson made the 911 call, telling the emergency dispatcher he “called to report a choking.”
The child’s mother, Ann “Ashley” Doohen, was reportedly not at home when the incident took place. Instead, Patterson, who USA Today reports she recently moved in with, was taking care of the boy.
The toddler was transported to a local hospital where doctors found injuries consistent with abuse.
Reports have surfaced that Patterson has a history of domestic abuse. According to the Argus Leader, in the summer of 2012, Patterson was indicted on various counts of simple assault involving an ex-girlfriend and her toddler son. He was then sentenced to a year behind bars for violating a restraining order, but ended up with a suspended sentence because he agreed to attend domestic violence counseling.
The Leader reports that the ex-girlfriend requested the no contact order alleging Patterson spanked her 3-years-old son so hard, he left welts on his buttocks. When she confronted him about the injuries, he allegedly sent the children into another room, closed the shades, grabbed her by the throat and threatened to hit her with his fist.
Patterson’s bond is set at $750,000 cash and a revocation hearing is slated for Oct. 30.