"It was very hard to look at," said Billie Dunn, Hailey's mother, "just seeing the way she walks, and recognizing it."
Billie spent Monday combing through surveillance video with Colorado ISD officials. The video was shot just before students at Colorado Middle School were released for winter break.
"I didn't think that it was possible," she recollected, "but I am definitely missing her more now."
While pictures can help identify a missing child, Colorado City Police and other law enforcement agencies have studied this video to get a better idea of how Hailey carried herself.
"All these things need to be fit together and put together for evidentiary purposes," said Pete Kampfer, City Manager of Colorado City and spokesman for Colorado City Police Department.
At the request of Hailey's mother, Colorado ISD's superintendent released the video to KTAB, hoping someone will help lead authorities to this 13-year old girl.
"I've never gone this long without seeing Hailey," Dunn said.
Until then, there's just one message Dunn wants to relay to her daughter.
"(I want her to know) how much she's loved and missed," she said, with tears in her eyes, "I hope she knows."
Dunn is a mother determined to keep her daughter's story alive until she makes it through her family's front door.