Deputies know who pulled the trigger inside an Orange County home last week, killing two people before taking his own life.

They said forensic evidence proves Jason Drake killed GOP consultant Ralph Gonzalez and his roommate David Abrami, and then turned the gun on himself.
    
All three men died last Tuesday inside a home in Union Park, but their remains weren't found until Thursday.
    
Drake is a former Marine.

Investigators said they don't know yet why he committed the killings.
    
Gonzalez was buried on Monday in Miami.