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Michael Jackson's doctor looks set to be charged over the singer's death, according to the website TMZ.
Los Angeles police will present their case against Dr Conrad Murray to the District Attorney's office within weeks, the celebrity site said.
LAPD sources are quoted as saying Dr Murray will most likely face a charge of involuntary manslaughter which requires proof of gross negligence.
Jackson died suddenly last June, aged 50, at his LA home while under the care of Dr Murray.
The pop superstar had been due to launch a series of concerts at London's 02 Arena just days later.
Miranda Sevcik, a spokeswoman for Dr Murray, and his lawyer, Edward Chernoff, said he has no comment.
Both insisted the doctor had not prescribed or administered anything that should have killed Michael Jackson, according to the Associated Press news agency.
Authorities have apparently also lined up medical expert witnesses who will testify about the normal standard of care expected in a situation such as Jackson's, the source told AP.