SAN ANTONIO -- Lisa Martinez is still in disbelief, days after she says her son shot and killed her estranged boyfriend.
"I can't accept Ernest is gone and I can't deal with everything that I'm going through because of my son," she said.
Martinez and her son, Jonathan Guillen, Sr., were at her Austin Highway apartment Thursday morning when Ernest Garcia showed up. She said she and Garcia began arguing and Guillen tried to come into the room.
"Jonathan said, 'did he hit you, Mom?' and I never answered because I didn't want any problems. Jonathan told Ernest, 'I already told you about putting your hands on my mom. I'm not going to stand for this, you need to get out.'"
Martinez said Garcia had been drinking and asked to speak to her alone.
"Then Ernest started going up to him again and Jonathan shot him once. He didn't fall and kept stumbling forward and that's when Jonathan shot him the other times," she said.
Martinez said she didn't leave the room so she did not see Guillen take his 11-month-old son, Jonathan Guillen, Jr., from the apartment. The baby was sleeping in the other room, she said.
Martinez said she has "no doubt" Guillen is the child's biological father, and he has custody of the child.
Police released an AMBER Alert saying Guillen took the baby in a black Chevy Trailblazer, but Martinez disputes that.
"My vehicle, he never took it. First of all, he doesn't know how to drive."
Martinez said she hopes both her son and grandson will be okay.
"I would hope he would turn himself in. If that's not what he's planning to do at least, give a family member the baby," she said.
Now that the Trailblazer is no longer part of the AMBER Alert, police say it will be up to the Department of Public Safety to discontinue the alert.