Murray, Jackson's personal physician at the time of his death, was found guilty of involuntary manslaughter in connection with the death of the King of Pop and was sentenced to four years in jail, reported Radar Online.
"Dr Murray spends most of his days writing what he is telling friends will be a tell-all book about what really happened in the final days of Michael Jackson's life. Murray believes that the public will want to hear about the time he spent with Michael.
"This is all about money for Murray though because he is absolutely flat broke and desperately needs the cash. He feels that the book could help rehab his image and help him to get his medical license back," a source said.
However, because of jail overcrowding in California, Murray, who has served less than a year of the sentence to date, is expected to only serve two years behind bars.
"The conviction is being appealed and Murray is confident that it will be successful, even though legal experts say that it's very unlikely that he will get a new trial.
"Conrad is extremely arrogant and doesn't accept any responsibility for the death of Michael Jackson. He truly believes he has done nothing wrong," the source added.