Christina Rose ’Christy’ Baccus-Gallela was 34 when she was killed in Colorado Springs on October 31, 2015. She was one of three people shot that morning during a random rampage by a gunman later identified as Noah Jacob Harpham, 33. Harpham first fatally shot a bicyclist, Andrew Alan Myers, 35, then less than a mile away opened fire on a sobriety house porch, killing Christy and another woman, Jennifer Michelle Vasquez, 42.

At the time of her death Christy was reportedly studying cosmetology and working as a telemarketer while recovering from an addiction to painkillers. The shooter had posted a rambling video online two days earlier expressing displeasure with his father’s involvement in a church, but that video did not indicate violent intent. Harpham, who had a history of alcoholism, was killed in a subsequent shootout with police. The motive for the killings remains unclear.

Did anyone who knew Christy, or who was in that neighborhood on October 31, 2015, notice anything that might help explain what happened?