Criss Angel announced last month that his sonJohnny Crisstopher's cancer is now in remission after being diagnosed withB-Cell A.L.L. Leukemia in 2015.The illusionist, 54, recently told Extra that the 'hardest part' of his son's cancer journey was the 'hell' the seven-year-old went through while battling it.'Seeing my kid, you know, going through hell.