Denver Family Looking for Missing 13-Year-Old Boy Who Was Last Seen Leaving Home 3 Months Ago

"We are missing a missing piece," said 13-year-old Diego Hernandez's mother

<p>Denver Police Department</p> Diego Hernandez, the 13-year-old who has been missing since Dec. 1

Denver Police Department

Diego Hernandez, the 13-year-old who has been missing since Dec. 1
  • Diego Hernandez, 13, has been missing since Dec. 1, according to the National Center for Missing and Exploited Children

  • Footage from that night appears to show the teen leaving his Denver home with a bike

  • Heather Hernandez, Diego’s mom, said she did not notice anything out of the ordinary the night before her son's disappearance

A Denver family is still looking for 13-year-old Diego Hernandez, who has been missing since December.

Diego Hernandez, 13, was last seen on Dec. 1, according to the National Center for Missing and Exploited Children.”

Heather Hernandez, Diego’s mom, was passing out flyers in Denver on Wednesday, according to FOX affiliate KDVR. She said she was determined to find her son.

“I try to work, I try to make it normal as possible for the kids to go to school and have the same routine, but when we are missing a missing piece, it’s not the same,” the mom told the station.

Related: A Complete Timeline of Missing Student Riley Strain's Disappearance

On Feb. 24, the NCMEC released footage that appears to show the teen “leaving his home in Denver, Colorado in the middle of the night.”

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The footage shows Diego “putting a jacket on, grabbing a bike, and then hopping over their fence.

Related: Missing California Woman's Car Found Abandoned in Remote Arizona Desert: ‘Very Odd’

The mom previously told NBC affiliate KKCO that the night before her son’s disappearance was normal and that the family had dinner together before going to bed.

The Denver Police Department did not immediately respond to PEOPLE’s request for comment.

Diego is 4-foot-9 tall with brown eyes and black hair and weighs about 120 lbs.

Anyone with information about Diego is asked to call the NCMEC at 1-800-THE-LOST or Denver police at 1-720-913-2000.

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