Dr Mark Chavez appeared in a Los Angeles court on Wednesday to enter his plea.

He could face up to 10 years in prison.

Perry was found dead at his home in Los Angeles, aged 54, on 28 October last year.

The actor was taking ketamine six to eight times a day before he died, according to court documents.

Chavez's lawyer Matthew Binninger said after his first court appearance in August that he is "incredibly remorseful" and is "trying to do everything in his power to right the wrong that happened here".

Five people, including Chavez, have been charged in connection with Perry's death.

The other four are Perry's live-in personal assistant Kenneth Iwamasa, an acquaintance of the actor named Eric Fleming, another doctor named Salvador Plasencia, known as "Dr P", and Jasveen Sangha, who was referred to in documents as the "Ketamine Queen".

Chavez is the third person to have pleaded guilty in the case.

Iwamasa has pleaded guilty to one count of conspiracy to distribute ketamine causing death.

He's also admitted repeatedly injecting Perry with ketamine without medical training, including on the day he died.

Meanwhile, Fleming, 54, has pleaded guilty to one count of conspiracy to distribute ketamine and one count of distribution of ketamine resulting in death.

He admitted to giving Iwamasa the ketamine that killed Perry.

Chavez, Fleming and Iwamasa were offered lesser charges and in exchange for their cooperation as they go after Plasencia and Sangha - who prosecutors deem are more responsible for the overdose death,

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