A 48-year-old man fatally shot and killed his ex-girlfriend with a 9mm pistol Monday night in Dorado Park residential area. The deceased was identified as 27-year-old Monalisa Uibaqub Xoagus. The police reported that the suspect Keib Diedrich thereafter turned the gun himself. The couple had been together for five years and it is alleged that Xoagus decided to end their relationship. This move allegedly angered Diedrich which led to the fatal shootings.