The rapper was found Friday at around noon at his San Fernando Valley home and was pronounced dead at the scene.
He had allegedly wrecked his Mercedes-Benz G Class vehicle by slamming into a utility pole, and fled the scene of the crash.
Los Angeles police said they responded to a report of a deceased person at a home on the same block where Miller is listed as a resident, but released no other details.
"Miller has had trouble recently with substance abuse.in the wake of his breakup with Ariana Grande", reports TMZ.
He told Vulture, "I really wouldn't want just happiness".
Britain warns Syria at U.N.: 'More babies in Idlib' than 'terrorists'
The Assad government was not directly represented at the summit, nor were the United States and other Western powers. Noting that Turkey hosts 3.5 million refugees, he said: "Idlib's population is now 3.5 million".
Miller's USA tour was due to commence in San Francisco on 27 October.
One of Grande and Miller's last appearances together took place at this year's Coachella music festival in Indio, California, where the former couple was seen getting cozy with one another as Grande posed in a light purple outfit. "She can't control his actions, he was a grown man, and it was his decisions that led him to where he is today". Throughout his prolific career he collaborated with Anderson.Paak, Ty Dolla Sign, Ariana Grande, Flying Lotus, Thundercat, Kendrick Lamar, and many more.
In November 2011, Miller released his debut studio album Blue Slide Park.
He also landed a reality series, "Mac Miller and the Most Dope Family", in 2013, which ran for two seasons on MTV2. "I have cared for him and tried to support his sobriety & prayed for his balance for years".
"Nine times out of ten I get it wrong", he rapped reflectively on Swimming track "Small Worlds". Do I wish that every single thing I did when I was 19 wasn't a discussion? On Thursday he tweeted: "I just wanna go on tour".
And it also sounds as though he thought he had a lot more time to ride out those ups and downs. You know, it's all positive energy.