RELATED: Watch Dr. Conrad Murray's video
"I have done all I could do," a solemn-sounding Murray says as he looks into the camera. "I told the truth and I have faith the truth will prevail."
The video was recorded last week at a private residence in Houston, said Miranda Sevcik, the spokeswoman for Murray's lawyer.
After Jackson died, Murray received death threats, hired a body guard and was forced into seclusion at his Las Vegas home, Sevcik said. He also has received many calls from patients, former patients and strangers offering him support.
"Because of all that is going on, I am afraid to return phone calls or use my e-mail," Murray says. "I recorded this video to let all of you know that I have been receiving your messages ... Your messages give me strength and courage and keep me going. They mean the world to me."
Since Jackson's death, Murray has not worked and has closed his Las Vegas practice.
The doctor was in dire financial shape when he signed on with Jackson earlier this year at $150,000 a month, owing at least $780,000 in judgments and outstanding payments.
Sevcik said the only reason Murray made the video was to address supporters, but she added Murray told her he misses being able to work.
"He says he wants to get back to work, he really does genuinely care about the people he works with," Sevcik said. "He has to just wait, he's in limbo."
Gregory D. Lee, a retired supervisory agent with the Drug Enforcement Agency, said he thought Murray wanted to improve his image.
"This doctor has been demonized," Lee said. "This is an attempt to humanize him and possibly sway any potential jury pool out there."
Murray told investigators he administered Jackson a powerful anesthetic along with multiple sedatives in the hours before the singer died, a law enforcement official told The Associated Press. Investigators think Murray left the room where Jackson was sleeping for a few minutes to make phone calls and returned to find the pop icon not breathing.
The official requested anonymity because the investigation is ongoing.
The Los Angeles coroner's office has said it has completed its work determining Jackson's cause of death but won't be releasing results until the police investigation is complete.