More details are starting to come to light in the wake of Foo Fighters drummer Taylor Hawkens’ death as the rest of the band make an emotional return to LA. Investigators are now claiming that the 50-year-old rock star suffered from a ‘cardiovascular collapse’ after taking a drug cocktail which included heroin, marijuana, opioids as well as other possible psychedelics. Forensic experts assigned to the American drummer’s autopsy discovered that the rock star’s heart weighed “at least 600 grams'”, that is double the average of a man his age would have which should be around 300 to 350 grams. Haw…