FORT WORTH -- A 20-year-old man has been arrested on a murder warrant in connection with a shooting at a party in October that left a young mother of two dead and seven others wounded.Jacob Cordero is accused of opening fire on party-goers standing outside a home in the 3700 block of Frazier Avenue in the early-morning hours of Oct. 23.Eight people were struck, including Christina Davila, 21, who died at the scene from a high-velocity gunshot wound to the neck.Homicide Sgt. Cheryl Johnson said the motive appears to be gang-related.Although Davila was not a gang member, Johnson said that she was acquainted with gang members and that several gang members were present at the party. Cordero, Johnson said, belongs to a rival gang.Cordero was being held in Johnson County on unrelated charges when he was arrested on the murder warrant.Police have said that the gunman had wore dark clothes, including a hooded jacket, when he walked up to the group, opened fire, and then ran away.Tarrant County records show that Cordova was sentenced to three years in prison in June 2010 for assaulting an off-duty Fort Worth police officer.Officer Randy Molina and two other off-duty officers were trying to break up a fight at a private party in the Stockyards when Molina was injured.He was treated at a hospital for a broken nose and concussion.Federal court records show that Cordero was deported to Mexico in May 2011. He was discovered back in the United States in November and indicted on one count of illegal re-entry.The indictment, however, was dismissed in February after information arose that Cordero, though born in Mexico, may have derived U.S. citizenship through his father.Davila left behind a son and daughter, now ages 3 and 4.Linda Rodriguez raised Davila, her granddaughter, from a toddler and now raises Davila's two children."They do miss her, believe me," said Davila's great aunt, who spoke about the family only on the condition that she not be identified. "We have pictures in the house."They know that's their mom and they know she's an angel in heaven and they know she's not coming back, and not because she doesn't want to."The great aunt said Rodriguez was relieved to learn about the arrest."I know she's just glad that they finally arrested the person and there's finally closure to it," she said.