LOS ANGELES (CBSLA.com) — Testimony concluded Friday in the high-profile wrongful death lawsuit filed by the family of the late Michael Jackson against entertainment promoter AEG.

READ MORE: After Hitting Record High, LA County Gas Price Drops For 8 Straight Days

Michael Jackson’s mother, Katherine Jackson, is accusing the concert promoting giant of negligently hiring Dr. Conrad Murray to care for the singer as he prepared for his ill-fated “This Is It” comeback concert series in London and wants the firm to be held liable for her son’s death.

Murray was convicted of involuntary manslaughter in 2011 in Jackson’s death.

AEG says it cannot be held responsible for Jackson’s death.

Attorneys for AEG, who rested their defense Wednesday, argue Jackson maintained secrecy surrounding his medical care, including the treatment Dr. Conrad Murray was providing inside Jackson’s bedroom when the pop star died from an overdose of the anesthetic propofol in June 2009.

Randy Paige, reporting for KCAL9, spoke to both Brian Panish — lead attorney for the Jackson family — and Marvin Putnam who is representing corporate giant AEG.

READ MORE: Man Attacked During Possible Early Morning Brentwood Robbery

The two have locked horns for the past five months and both men told Paige it was the longest trial they’ve ever been involved in.

He also asked both attorneys “What is the one sentence you want the jury to take with them when they begin to deliberate?”

Putnam said, “Michael Jackson was a grown man who kept all of his addictions, including his biggest addiction to propofol, a secret and, therefore, I think one has to look to personal responsibility there.”

Obviously, Panish feels differently.

“AEG had the opportunity to help Michael take action. They didn’t and they put Conrad Murray in a substantial conflict which led to what happened,” said Panish.

Closing arguments are expected to begin next week.

MORE NEWS: New COVID Testing Protocols Take Effect For International Arrivals At LAX

RELATED: Physician Who Accused Jackson Of ‘Doctor Shopping’ Takes The Stand