A 32-year-old New Jersey man was sentenced Friday to 25 years in prison for the deadly abuse of his 6-year-old son, who he allegedly forced to run on a speeding treadmill for being “too fat.” Christopher Gregor claimed in court that he “did nothing” to cause the death of Corey Micciolo, saying, “I did not hurt my son,” the Asbury Park Press reported. But those assertions were rejected by Superior Court Judge Guy Ryan, who cited harrowing surveillance video that showed Corey repeatedly stumble, fall and get thrown from the treadmill when he couldn’t keep up. At one point, Gregor lifted Corey of…