Hudson's sister can be heard sobbing and pleading for help in the phone call.
"Oh my God.... Somebody's killed my mother," said Julia Hudson as a dispatcher tried to calm her and asked her to repeat her address. "She's on the floor and I see blood coming from her head." She also sounded confused and panicked when she could not find her brother or 7-year-old son, Julian.
Prosecutors tried to stop the tape from being released due to the sensitive nature of the case and because the jury has not begun deliberating. However the judge asked the jury not to watch or read news reports about the case.
Balfour has pleaded not guilty to the first-degree murder charges.
The Associated Press contributed to this report.
