Not long before Castilla was shot and killed on Sunday in the attack on the Route 91 Harvest country music festival, the 28-year-old told her brother that she wanted to serve cancer patients with her talents. For the Huntington Beach, California, resident, makeup was more than just a part of her job at Sephora. “That’s what made her really happy. Making people feel beautiful,” Athena Castilla said. “She just had such a great outlook on life.” Andrea was visiting Athena, who lives in Las Vegas, for her birthday on Friday. Andrea’s death has been made even more painful by the fact that her boyfriend was preparing to propose to her, Athena said.