Rapper Lil Peep, whom many have credited as an innovator in the indie hip-hop world, has died at the age of 21.
His manager found the up-and-coming musician unresponsive in his tour bus on the evening of Nov. 15 in Tucson, Arizona, CNN reports. Emergency responders were unable to revive him.
Tucson Police Sgt. Pete Dugan told CNN that officers spoke with those who were present, entered the tour bus and determined that "there was evidence of a possible drug overdose, most likely from Xanax."
"Obviously, we're not medical examiners, so there will be an autopsy to determine the exact cause of death," Dugan added. "[There was] no sign of any kind of foul play, [and police are] treating it as a suspicious death case, most likely from an overdose."
Since the news of his passing broke, fellow rappers like Lil Yachty and Ty Dolla $ign, as well as other famous faces in music and entertainment, have paid tribute on social media.
"Peep had so much more to do man he was constantly inspiring me," musician Diplo tweeted. "I dont feel good man."
A few cautioned about the dangers of drug use, but most shared fond memories about a man whom most described as a good friend with a genuinely good heart.
"In the short time that i knew you, you were a great friend to me and a great person," tweeted Post Malone. "Your music changed the world and it'll never be the same. i love you bud. forever"
The late YouTube and SoundCloud star, born Gustav Ahr, grew up in Long Island, New York, described his distinctive sound as brutally honest, often angsty hip-hop with "that emo spin," according to Pitchfork. Though he didn't always share it on social media, he said he suffered from "serious" depression.
"Some days I wake up and I'm like, f**k, I wish I didn't wake up," he shared in a January interview with the publication. "I realized it was just myself -- it's a chemical imbalance in my brain ... That's the side of myself that I express through music. That's my channel for letting all that s**t out."
First Access Entertainment CEO Sarah Stennett told CNN she was "shocked and heartbroken" by the news.
"I do not believe Peep wanted to die, this is so tragic," she said in the statement. "He had big goals and dreams for the future which he had shared with me, his team, his family and his friends. He was highly intelligent, hugely creative, massively charismatic, gentle and charming. He had huge ambition and his career was flourishing."
Peep's debut album, "Come Over When You're Sober (Part One)," was released on Sept. 1.
Stennett, whose company worked with Peep in 2016, said that she spoke to his mother, who wanted the public to know that "she is very, very proud of him and everything he was able to achieve in his short life."
"She is truly grateful to the fans and the people who have supported and loved him," she added.