Moo, her 11-year-old brother and newborn brother, were being watched by their aunt. Wah was at work and their mother, who had given birth just three weeks ago, was at a doctor's appointment, Van Dyke said. The family also has two more sons, ages 20 and 18.

When the mom returned home about 2 p.m., she did not see Hser Nay Moo, but didn't think much of it at the time. By 6:30 p.m., however, concerned neighbors called police.

Wah lived in a Thailand refugee camp for 20 years before coming to Utah last August. He was originally from Myanmar, Van Dyke said. The family speaks very limited English. Part of the problem for investigators Tuesday was finding an interpreter who spoke their Burmese dialect. The family is deeply religious, Van Dyke said, and spent Tuesday afternoon praying.

Family friends revealed Tuesday night before Moo was found that the young girl had asthma and did not have her inhaler with her when she was last seen. Cold weather and stressful situations caused her chest to have contractions in the past, Van Dyke said.

During the day, ground patrols, helicopters and K9s were all used in the search effort. As of 4 p.m. Tuesday afternoon, investigators had few leads as to Moo's whereabouts.

"We have no evidence to give us indication of where she might be," Snyder said.

After Monday night, all but three apartments had been "cleared" by investigators, Snyder said. Detectives were unable to find anyone to let them in and consent to being searched, he said. The remaining three were cleared Tuesday, with Moo's body being found in the third and final apartment.

Pink ribbons were hung on trees and telephone poles in the neighborhood late Tuesday as support from the community grew. Tuesday night, candles replaced ribbons as mourning and grief replaced hope.

The Utah Attorney General Office's CART (Child Abduction Response Team) team has also joined the search effort. It's the first activation of the newly formed team. In addition to CART, the Department of Public Safety, Salt Lake County Sheriff's Search and Rescue Team, the FBI and the National Center for Missing and Exploited Children all joined in the search.

Snyder said he also placed a call to Salt Lake Police Chief Chris Burbank Tuesday morning. Burbank sent investigators who worked on the Destiny Norton case to help. Norton, 6, was kidnapped from her yard and killed by a neighbor in 2006. Her body was found in a neighbor's basement storage room.