Ted Taylor, accused of killing his mother and stepfather in their Argyle Forest home last year, will remain at a state-run psychiatric facility in the Panhandle.
Doctors have determined that he is still not competent to be prosecuted.
Taylor was arrested in west Texas the day after he was named a person of interest in the January 2007 shooting deaths of 57-year-old Sandra Hardy-Biggins and 58-year-old Dennis Biggins.
Taylor had served 10 years on a Texas conviction for attempted murder before returning to Florida in 2005. His last known address was his parents' home.
Shortly before she was killed, Taylor's mother had voiced concerns to authorities about her son's mental health.
The judge presiding over the case got a letter this week saying Taylor was still unable to assist in his own defense. His mental status will be reviewed again in six months.
- June 8, 2007: Judge: Man Incompetent To Stand Trial In Parents' Deaths
- January 12, 2007: Man Sought In Parents' Slaying Arrested In Texas
- January 11, 2007: 2 Dead In Argyle Forest; Man On Parole Sought