this is terrell kelly. pit bull name is cletus. the reason he's walking across the stage, terrell's son josh died february 13th. his son had epilepsy but klclet was his service dog. terrell says that when he first met the dog he thought a pit bull service dog. immediately his heart changed after he met cletus. >> he allows our grandchildren to climb on him, pull his ears, tail. he's just great. >> josh's parents thought this diploma was very important for their son because they said he would get up at 6:30 in the morning and walk with cletus two miles to get to the bus to go to idaho state university and he said on many occasions, ems and paramedics would find him on the side of the road or in somebody's lawn with cletus standing over him because he was his service dog. this was josh's last semester. he was taking his final two classes when he took ill. his diploma awarded posthumously in geology. he got his b.s. in geology after all. >> what a beautiful tribute to his son. had to have been heartbreaking for his father to make the w