After a fight in a house just north of Kendall, a man from Miami pulled out a semi-automatic handgun and shot his ex-wife four times, sending her flying through a locked door. That’s what the arrest record for 47-year-old Pedro Nunez from Little Havana says happened when he turned himself into police in Hialeah on Sunday, four hours after the shooting. The report says Nunez gave up his right to stay silent and told police in Miami-Dade County how he thought he killed his ex-wife.