AURORA, Colo. -- A 6-year-old boy missing since Saturday night is believed to have walked away from his home in south Aurora, police said.
Without evidence of an abduction of David Puckett, the Colorado Bureau of Investigation won't issue an Amber Alert, according to a bureau spokeswoman.
Aurora police chief Nick Metz said the state's decision is not stopping the department from making the search its top priority. There were no leads as of late Sunday.
"I'm worried with how cold it is that something might really bad happen to him," said David's mom, Stephanie Puckett.
Puckett said she realized her son had vanished just before 6 p.m. Saturday. Volunteers and police officers spent the holiday searching for the boy who has a history of wondering off.
"We have no evidence at this point that suggests that he's been abducted, but obviously we're not going to rule anything out like that," Metz said.
Metz said without evidence of an abduction, the CBI will not activate an Amber Alert.
It's not fully clear how the CBI interprets Colorado's Amber Alert law. As written, the law uses the word "abduction," but only defines an abducted child as one whose whereabouts are simply unknown.
The CBI said criteria for an alert must include evidence that the child is in immediate danger, or serious bodily harm or death. Many said Sunday they believe the cold weather should qualify.
In the absence of an Amber Alert, Aurora police officers are hopeful the department's aggressive approach with news releases and on social media posts will be enough to bring David home.
David is 4-foot. He is white and was last seen wearing green camouflage pants, a black T-shirt, black and orange boots, and a tan coat. Anyone with informantion should call police.
"This is one of those situations, as we've said in other cases like this before -- we know that somebody knows something," Metz said.
Police have set up three tip lines to relieve the 911 system: 303-739-1870, 303-739-1865 and 303-739-1868.
Authorities stopped registering additional volunteers at Aurora's Olympic Park at 5 p.m. Sunday. Police said more information on the search effort and possible volunteer opportunities will be made Monday.