James Garner died of a massive heart attack
JAMES Garner's death certificate has revealed he died of a massive heart attack.
The 86-year-old legendary actor passed away at his home in Los Angeles on July 19 from acute myocardial infarction.
The legal document also indicated the 'Rockford Files' star had been suffering from coronary artery disease for some time, according to gossip website TMZ.com.
A number of the late actor's former co-stars and colleagues paid tribute to him following his death.
Mark Gatiss, showrunner for 'Doctor Who' and 'Sherlock' described him as a "wonderful" man.
He wrote on Twitter: "Goodbye, Jim Rockford. The wonderful, amiable James Garner has gone. Had the honour of meeting him at the AFI twenty years ago. RIP"
Chat show host and journalist Piers Morgan echoed the sentiment.
He tweeted: "RIP James Garner - a wonderful actor. #GreatEscape #RockfordFiles #Maverick"
After making his film debut in 1956, James appeared in a huge range of movies and TV shows, including more recent projects like 2004's 'The Notebook' and US sitcom '8 Simple Rules', which he starred in for three years until 2005.
Law enforcement sources previously indicated he died from natural causes.