Two men who worked for Michael Jackson and were at his house the day the pop star died want to be interviewed by the Los Angeles Police Department to contribute to the singer's death probe, the L.A. Times reported.

Michael Amir, Jackson's personal assistant and Alberto Alvarez, a security guard who placed the call to 911 could help investigators confirm or contradict the facts given by Jackson's physician Dr. Conrad Murray, during the final hours of the King of Pop, the paper said.

Some of their information could shed new light on the timeline police have established covering Jackson's final hours and the actions of his doctor, Carl Douglas, the employee's lawyer said, according to the paper.

Police say Dr. Murray gave Jackson a powerful anesthetic called Propofol at 10:40 a.m. and noticed Jackson stopped breathing by 11:00 a.m. However, 911 wasn't called until 12:22 p.m. Since Michael Jackson's death was ruled a homicide, the time gap is suspicious for investigators, according to the search warrant documents released on Monday.

Alvarez was present with Jackson and Murray in those critical moments.