Prince Was Home Alone at Time of Death, No Signs of Suicide or Trauma, Sheriff Says

The legendary musician's ongoing death investigation continues.

Carver County Sheriff Jim Olson held a press conference on Friday -- shortly after an autopsy had been completed on Prince -- to address all the public information that's currently available in regard to the ongoing police investigation to determine how the legendary musician died one day earlier at the age of 57.

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According to Olson, Prince was last seen by an acquaintance who had dropped him off at his Paisley Park residence around 8 p.m. on Wednesday. Olson added that staff was unable to reach him on Thursday, which is when they went to go check on him and found him unresponsive in the elevator on the first floor.

Prince was the only one at the residence the night before until the three staff members who came to check on him arrived. There were no obvious signs of trauma on the body, Olson informed the media.

"We have no reason to believe at this point that it's a suicide, but it's early on in the investigation," Olson said. "Prince is a very private person and I don't think it would be unusual for him to be there by himself."

When asked if he knew if Prince had been taking any medication -- including the pain killer Percocet -- Olson would not comment.

"I am not able to confirm that all," he stated, adding that investigators will be "gathering medical records" and talking to "people that [were] close to him."

Olson was also asked if any medications were taken out of Prince's home, to which he replied, "Not going to get specific about what [was] taken or not taken from the home. This case is currently under investigation."

Olson noted that information regarding the exact time of when Prince stopped breathing is pending. Under standard protocol, police are also filing a search warrant of Paisley Park.

"We did do a search warrant, yes," he confirmed. "And that would be protocol, Paisley Park is huge. It's hard to say who had control at the time, or who could have given us permission to process that scene, so we just thought that it would be safer and better for us on the front end to get a search warrant."

"The search warrant has not been filed as of yet, [but] will be filed probably in the next week or so," he added. "To process the scene at Paisley Park."

A source very close to the situation tells ET that Prince was battling the flu, which turned into walking pneumonia. The "Purple Rain" singer was also dealing with a hip injury and had a problem with Percocet, according to the source. We are told his issue with the powerful narcotic began years ago, shortly after he underwent hip replacement surgery in 2010.

Olson told ET on Thursday that Prince was found unresponsive in an elevator when officials responded to a call at his Paisley Park Studios in Chanhassen, Minnesota, at 9:43 a.m.

"When deputies and medical personnel arrived, they found an unresponsive adult male in the elevator," Olson said in a statement. "First responders attempted to provide lifesaving CPR, but were unable to revive the victim. He was pronounced deceased at 10:07 a.m. He has been identified as Prince Rogers Nelson of Chanhassen."

The Sheriff's Office is continuing to investigate the circumstances surrounding Prince's death with the assistance of the Hennepin County Sheriff's Office and The Midwest Medical Examiner's Office.

WATCH: Prince Found Dead in an Elevator, Police Continue to Investigate Death