Nathaniel Holmes was 17 when he disappeared from Westminster, Colorado, in the winter of 2017. On the morning of December 19 he was dropped off at Hidden Lake High School, an alternative program he had attended for about five weeks after leaving an online school. The day before he went missing he had said he took a Xanax from a friend and spent the night at his mother’s so she could watch him.

That morning Nathaniel did not attend classes. He went to the principal’s office and asked to speak to a friend; the request was denied and he walked out of the school. He later called his mother from a stranger’s phone at a nearby park and left a voicemail saying she did not need to pick him up because he’d arranged a ride with a friend of his father — a ride his family says never existed. He had no phone, no money and left behind personal items including his iPad.

There were unverified reports he’d been at a homeless shelter and a later, unconfirmed sighting of him entering an apartment belonging to a known drug dealer. The Westminster Police Department is still seeking information and a reward has been offered. If anyone knew Nathaniel, his habits, or his movements around December 19, 2017, please share what can help locate him.