For the past year, Redmond, 34, has been sitting in a Los Angeles County jail cell insisting that his godmother, Mela Murphy, put him in rehab.
Farrah and Ryan O'Neal's son does not understand the charges and possible life sentence he is facing due to his mental health significantly deteriorating, Murphy told Radar.
"He's been very scared and extremely confused," Murphy said. "At times he says to me, 'Why am I here? Why can't you take me to rehab? Why can't you get me out of here and take me to Stockton hospital?'"
As Radar reported, Redmond has been charged with attempted murder and other felony charges in connection to a week-long crime spree in Los Angeles where he allegedly attacked and critically injured at least two people.
An emotional Murphy told Radar she is concerned Redmond could succumb to the voices in his head. She believes he is not taking the proper medication to control his chronic mental health problems.
"He just doesn't have any grasp of reality, what's happening and why he's there," said Murphy. "It's really hard and painful to see because I've seen him when he is lucid...and I remember when he was just a sweet boy who loved to play the drums."
Redmond, who has been in and out of rehab and jail more than a dozen of times, is fighting for his life as his attorney, Nina Daly, continues to argue at a Los Angeles County Mental Health court to send the 34-year old to a state facility for treatment before he answers to his criminal charges. A judge has yet to rule whether or not Redmond is competent to stand trial.
Anna Kafka, one of the psychologist who reviewed Redmond's records, said Fawcett's troubled son had "an upbringing rife with trauma and neglect, as well as early onset of substance abuse."
Murphy, who has known Redmond since he was born, said she watched as her beloved friend, Farrah, doted on her only son and tried her best to find the right school or behavioral facility that could help him, to no avail.
Fawcett died of cancer on June 25, 2009, while her troubled son was in a Los Angeles jail. Redmond heard about his mother's death from someone behind bars, Murphy said.
Now, Murphy told Radar that Redmond constantly calls her and his father often from jail making strange demands to get out. During their visits, Murphy revealed Redmond "holds up his hand to the glass and tells me he wants to leave and go to rehab. It's absolutely gut-wrenching."
Murphy said her immediate goal is to get her godson back on his medication. She visits him almost every week in jail, and is a constant presence in the courtroom even when Redmond is not required to be present for his hearings.
June 25 will mark Fawcett's 10-year death anniversary.