Robert's long time girlfriend Hong Pen was also shot in the incident; she is currently in serious condition in hospital.
Police were called to the home in the Oakridge gated community in Hollywood, near Fort Lauderdale, shortly after 9:30 AM. There they found the 66-year-old and his son both dead, and Pen critically wounded.
"We are investigating it. We are trying to obtain witnesses. Trying to obtain any evidence that we can find to get to know what happened in this situation," Hollywood PD's Christian Lata said.
"I believe that once we speak to the third victim and get some information, we might be able to come to a conclusion."