The Rock posted a lengthy video to Instagram thanking his followers for their support in his time of grief and shared some additional memories of his father. But he clarified that Rocky Johnson had deep vein thrombosis — a blood clot in his leg that traveled to his lung, formed a clot and quickly killed him of a heart attack.
“A lot of you wanted to know what happened to my dad. He had not been feeling well. Been battling a cold, an infection. On Tuesday he had a deep vein thrombosis, which is essentially a blood clot in the leg, a big old blood clot. It broke free, traveled up his body and went right to his lung.