Police believe Lann Boehler left his home, at 3000 South Laredo Street, in the middle of the night.
Police say he may have left on his Tony Hawk BMX bike, which is neon green and yellow.
It's unknown if Boehler got lost, injured or ran away. There is no evidence of foul play, according to detectives.
Boehler is described as a white male, 140 pounds, and 5'6" tall. He has brown hair and green eyes.
He was last seen wearing blue basketball shorts with a white stripe, black and blue tennis shoes with an "N", and either a green or brown T-shirt with a white hooded jacket.
If Lann's whereabouts are known, please call the Aurora Police Department at 303-627-3100.
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