Conrad Murray

The LAPD will present the case against Dr. Conrad Murray, the sole suspect in the June 25 death of Michael Jackson, to the L.A. County D.A.`s office next week.

LAPD detectives planned to wrap up their exhaustive homicide investigation and present the case by the second week in October. They remain on schedule.

Authorities are waiting on some written evaluations by medical professionals who reviewed evidence surrounding Jackson`s death of a suspected overdose.

Law enforcement sources say the medical reports are finally in and the LAPD plans to formally present the case to the D.A.`s office at some point next week.

After that, the D.A. will determine whether to file charges and what kind.

Prosecutors have been working with the LAPD for months now, so it`s not as if the evidence will be a surprise. Sources say Dr. Murray remains the sole target.

A law enforcement source says there`s a "70/30 chance" the D.A. will take the case to the L.A. County Grand Jury rather than charge Dr. Conrad Murray directly.

Murray`s girlfriend, Nicole Alvarez, is expected to testify.

The source says this could be a complicated case - obviously - and the very lengthy preliminary hearing that could ensue wouldn`t have much upside for prosecutors.

A grand jury indictment would prolong the process, as it would have to be seated and evidence presented, but it would be easy to get and avoids a hearing.

sections: Celebrities