Heather Snyder, a victim who lost two fingers in the 2012 Aurora theater shooting, died unexpectedly on Sunday, her father said. “We are still not sure what happened, it was totally unexpected,” Rick Snyder said Monday. Heather, 31, had to have her index and middle finger amputated following the rampage by a lone gunman on July 20, 2012 at a showing of “The Dark Knight Rises” at the Aurora Century 16 movie theater. “She never totally recovered from it, she was reminded of it every day,” her father said. Heather, who lived in Centennial, leaves behind a 3-year-old daughter, he added. Twelve people died in the shooting, and 70 others were injured. The gunman was sentenced to 12 consecutive life sentences in prison, followed by 3,318 years for trying to kill dozens of others and plotting to blow up his apartment. There is no chance for parole. Heather was among a group of Red Robin workers who attended the movie the night of the shooting. She testified that the shooting began about 15 minutes after the movie began, and she felt a burning sensation on her left arm and sharp pain in her left leg after the gunman began shooting. “I was thinking, ‘Oh my god! What is going on?” she testified. She said she never saw the gunman but heard popping sounds. Heather was taken to Denver Health Medical Center, where she had buckshot removed from her leg, had two fingers amputated and was treated for a gunshot wound to her forearm.