Jack Kevorkian Jack Kevorkian

Jack Kevorkian, aka "Dr. Death," died Friday morning of an apparent pulmonary thrombosis, the Detroit Free Press reports. He was 83.

Notorious for his right-to-die activism, the trained pathologist assisted in the suicides of approximately 130 terminal patients (by his count). He was convicted in 1999 of second-degree murder and served eight years in prison.

He was featured on a controversial episode of 60 Minutes in 1998, which broadcast footage of him helping a man suffering from amyotrophic lateral sclerosis end his life. More recently, Al Pacino played Kevorkian in a 2010 HBO biopic titled You Don't Know Jack. Kevorkian also dabbled in politics with an unsuccessful run for Congress in Michigan in 2008.

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Kevorkian suffered from several ailments, including ones affecting his heart and liver. He was hospitalized twice in May for kidney issues and a fall. By the time of his death, he had been hospitalized at Beaumont Hospital in Royal Oak, Mich., for a few weeks. 

Kevorkian was never married and had no children. His niece Ava Janus and his attorney Mayer Morganroth were with him at the time of his death. Morganroth said there were no artificial attempts to rescue Kevorkian and there are no plans for a memorial.