i will tell you how he died of heart attack.

he took testosterone to build and keep muscles. testosterone gets metabolized mainly in estrogen and dihydrotestosterone (DHT) in men. if you have high estrogen, you get gynaecomastia (man boobs), so people take aromatase inhibitors like letrozole to stop testosterone from converting to estrogen, but the the testosterone starts to convert into too much DHT, now too much DHT will cause, male pattern baldness and prostate enlargement, so you have to take DHT blockers like finasteride or dutasteride. but your body finds a way and tries to produce DHT in sebacious glands on surface of skin that gives you oily skin and acne, so you have to take retinoids like tretinoin or isotretinoin to keep acne in check. as a result of all this your HDL(high density lipoproteins / good fats in blood) decrease and LDL(low density lipoprotein / bat clogging fats) and over all triglycerides increase.

also, when you take any anabolic steroid, your body stops producing its own testosterone, now testosterone is made from cholesterol (thats why they both have "stero" in spelling) so now that your body is not producing its own testosterone, that cholesterol is gonna float around in your body and build up.

over long term they deposit on insides of blood vessels and this effect is compounded by alcohol. so you get a hear attack.