THE JURY in the trial of Dr Conrad Murray, who is accused of the involuntary manslaughter of singer Michael Jackson, has been played an audio recording which depicts Jackson under the influence of ‘unknown agents’.

The audio, taken on Murray’s iPhone the month before Jackson died, was played by a district attorney at the Los Angeles County Superior Court yesterday.

The recording, which has not been heard before, shows Jackson mumbling while “under the influence of unknown agents”.

The Los Angeles Times described the audio as indicating that Murray was “aware of ‘Michael’s state’ as he continued to offer him drugs”.

David Walgren, the chief prosecutor in the case, said it was a sign that Murray should have realised Jackson was being administered a dangerous quantity of propofol, the hypnotic sedative being administered in high doses to the ailing singer.

In the audio recording, a slurring Jackson is heard to express his hope that his comeback shows – which were to take place in The O2 in London two months after his death – would leave a lasting impression on its audience.

The jury was also shown side-by-side photographs of Jackson, rehearsing for his shows on June 24, and lying on his deathbed on June 25: