Jealous boyfriend slaughtered six in Colorado birthday massacre - 'because he didn't get an invitation to the party'
Six people were killed at a Colorado Springs birthday party early Sunday morning, when a gunman, named as Teodoro Macias Jr., 28, opened fire
The victims were identified by family members as Melvin Perez, 30, his brother, Jose Guttierez, 21, and their mother, Joana Cruz, 53
Also killed in the shooting were Perez's wife, Mayra Perez, 32, and Mayra's sister Sandra Ibarra and brother Jose Ibarra
Sandra Ibarra was the boyfriend of Macias, who had 'a history of jealous and controlling behavior' towards her, police said
When Macias finished shooting, he took his own life, police said