In the documents, obtained by TMZ.com, Liotta’s death was categorised as “natural and nonviolent” and officials found the star was suffering from atherosclerosis – a thickening of the arteries which can lead to problems including heart attacks and strokes.
Liotta had been in the Dominican Republic working on a movie called Dangerous Waters with Eric Dane, Odeya Rush and Saffron Burrows and previous reports suggested he had died in his sleep. His body was later flown back to his family the US.
The actor was honoured with a posthumous star on Hollywood Walk of Fame in Los Angeles in February. The ceremony was attended by Liotta’s fiance Jacy Nittolo and his daughter Karsen Liotta, who accepted the award on her dad’s behalf and expressed her pride in all his achievements.