LOS ANGELES -- After just a few moments in Michael Jackson's bedroom, the paramedic dispatched to save the singer's life said he thought things weren't adding up.

There was the skinny man on the floor, eyes open. His skin was turning blue. The paramedic, Richard Senneff, asked the sweating, frantic-looking doctor in the room what condition the stricken man had. "He said, 'Nothing. He has nothing," ' Senneff testified Friday at the involuntary manslaughter trial of Jackson's doctor, Conrad Murray. "Simply, that did not add up to me," Senneff said.

In the 42 minutes that paramedics tried to revive Jackson, several other things about the room and Murray's responses seemed inconsistent with what had really happened, according to Senneff.

After repeated prodding, Murray revealed that he had given Jackson a dose of the sedative lorazepam to help him sleep. Senneff noted there were bottles of medicine on Jackson's nightstand, and Murray finally said he was treating the singer for dehydration and exhaustion.

Murray never mentioned he had also been giving Jackson doses of the anesthetic propofol and other sedatives, a key omission that prosecutors say shows the cardiologist repeatedly tried to conceal his actions during the struggle to save Jackson.

Murray, 58, has pleaded not guilty. If convicted, he could face up to 4 years in prison and lose his medical license.

Prosecutors contend Murray repeatedly lied to medics and emergency room doctors about medications he had given Jackson. They contend Murray administered a fatal dose of propofol and other sedatives.

Defense lawyers claim Jackson gave himself the fatal dose after Murray left the room.

Defense attorney Nareg Gourjian asked Senneff whether Jackson's appearance was consistent with that of a drug addict. Senneff said that was a difficult determination to make, but that the singer "looked like he had a chronic health problem."

Investigation: Lack of police diversity ... LIer lands part in Michael Jackson movie ... What's up on LI ... Get the latest news and more great videos at NewsdayTV

Investigation: Lack of police diversity ... LIer lands part in Michael Jackson movie ... What's up on LI ... Get the latest news and more great videos at NewsdayTV

SUBSCRIBE

Unlimited Digital AccessOnly 25¢for 6 months

ACT NOWSALE ENDS SOON | CANCEL ANYTIME