(Rockford, IL) — A Rockford man is heading to prison for the rest of his life for a vicious, 2014 murder of his ex-girlfriend and her family. Calvin Carter the Third smiled as he left the courtroom after a jury convicted yesterday him of 133 counts of murder. Police say Carter killed Martia Flint, her six-year-old and four-year-old sons, and her new boyfriend in a jealous rage back in late 2014. Carter, by law, must be sentenced to life in prison when he is sentenced in September.