We all remember Davy Jones of The Monkees and we certainly all remember his sudden death in 2012. Jones suffered a sudden severe heart attack after months of alleged warning signs. He was only 66 years old and everyone was incredibly shocked when it happened. Now, a new docuseries produced by REELZ puts the spotlight on Jones in the '60s in addition to potential causes behind his sudden death. People saw apparent warning signs Davy Jones \/ Biography Monkees\u2019 biographer Eric Lefcowitz reveals that other members of the band actually saw signs of health issues in Jones. \u201cFrom what I understand, some of the other band members saw him short of breath and expressed concern,\u201d he explains.\u00a0\u201cBut he brushed it off and said, \u2018Don\u2019t worry about me, mate.\u2019\u201d Dr. Michael Hunter is one of the people in the docuseries who investigates Jones's health decline. He says that despite there being obvious warning signs, Jones was not at all concerned about his health. Peter Tork, Davy Jones, and Micky Dolenz \/ Dave J Hogan However, some people like friend and band member Eric Biondo didn't notice any warning signs of Jones's declining health. \u201cDavy was always charismatic, and charming, and funny. If he was having any symptoms that were leading up to his heart attack, I wouldn\u2019t have known... If there was something going on, he would just barrel through. Nothing would let the show falter.\u201d With this being said, Jones did visit a cardiologist in the spring of 2011 to ensure he was healthy enough to perform. That was when he was allegedly told he had the heart of a 25-year-old, which was obviously false information. Davy Jones \/ Xposure Photos \u201cDavy was told that he had the heart of a 25-year-old,\u201d Lefcowitz says. \u201cAnd I guess any man who\u2019s getting older, who hears that he\u2019s got the heart of a 25-year-old, is not gonna take any precautions with his life.\u201d However, Dr. Hunter says that medical records show that Jones's heart was working just fine 10 months prior to his death. So, what actually happened to cause his heart to stop working so suddenly? Autopsy: Davy Jones airs Sunday, July 28 at 9ET\/ PT on REELZ where you can find out the truth! Take a look at the promotional video for the docuseries below. https:\/\/youtu.be\/ZHqrwaF1rwo Earlier this year, The Monkees returned to the stage for the first time since band member Peter Tork's death. Take a look at the details here!