Cops are stepping up their investigation into the suspected drugs overdose of rapper Mac Miller, RadarOnline.com has learned.
The performer was found dead, aged only 26, at his Studio City home in Los Angeles on Friday.
A source told RadarOnline.com: "Police asked if we had any surveillance or photos of the cars that were at the party or if we saw any of the license plates.
"They are trying to find everyone who was at the house but they didn't tell us why – they told neighbors not to feel any danger.
"But they also told us the home was left in a suspicious state and they want to question anyone who was over."
RadarOnline.com revealed that Miller had a wild party the night before he was found dead while people were seen fleeing his house just hours before his body was discovered.
The rapper had endured several problems in the run-up to his shock death.
Miller's body was removed from the house by the Coroner on Friday – LAPD and Fire officials swarmed the scene after news broke of his death as fans sobbed in the street.
His former girlfriend Ariana Grande has turned off her Instagram 'comments section' after being trolled by people following his shock death.
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