In all fairness this physique is quite attainable natural, so I don't think the guy was juicing.Just my 2 cent.
Yes definatly Natural
He uses Jays Muscletech Mass Stack, So all you pubescent teenagers out there this physique can be attained naturally now go out and spend all your hard earned money on supplements
There is nothing you cannot attain with food, there is an absolutle neccesarity for an 16 year old to eat at least 2 Cups of Eggwhite 2 Bagels and A Pint of Milk in the morning followed by 2 mean Sirloin steaks 3 Cans of tuna and later on 100g of Salmon filet.