There is a new development in pop icon Prince’s death. Reportedly, Prince did not sleep for 154 hours straight before his tragic death.

While his family and the music industry continue to mourn his death, his brother-in-law Maurice Phillips revealed that the pop icon did not sleep for 6 days, before he was found dead in an elevator at his mansion in Minneapolis on Thursday.

Maurice, who is married to Prince’s sister said, “I was with him just last weekend. He worked 154 hours straight. He was a good brother-in-law.”

Maurice’s comments were published in The Mirror at the same time when a drug dealer claimed that the singer was spending around $51954 (US$40,000) on black market pills and Fentanyl patches.

His drug dealer said that Prince was an insomniac and was taking highly addictive and powerful painkillers for more than 25 years.   He died just days after sources claimed that he took an overdose of opiate Percocet. Percocet is a drug which keeps the user awake.

It has also been reported that the star secretly took the drugs to overcome anxiety and stage fright. quoted the drug dealer who said, “He’d buy large supplies of both drugs — I think the most he ever spent was around $40,000 at one time” for a six-month supply.

He added, “He was always a pill man — that’s why nobody ever saw him do drugs.”

The drug dealer went on, “He wasn’t really a party guy either; he was doing these drugs so he could feel at ease around people. When I knew him he didn’t have any health problems that I knew about — he was taking the drugs because he needed them to cope, not because he was in pain.”

Meanwhile, detectives are trying to find out how the music icon got prescription-only drugs and whether they were prescribed by a physician.

His friends, on the other hand, feared that he was under the care of a “Dr. Conrad Murray,” a medic who was allegedly responsible for Michael Jackson’s death. Some of them also informed that due to his performances in high hills his joints were damaged and he had to take the painkillers.

Police said that they were going to question the star’s doctors and his entourage who flew home with him after a performance in Atlanta. There was an emergency landing in Moline and Prince was given a “save shot.” The doctors advised that he would need to be monitored for 24 hours the pop icon continued with his journey.

Prince’s death is still under investigation and mystery still surrounds it.