AURORA, Colo. (CBS4)– Investigators have confirmed through DNA that the infant’s body found at the Denver Arapahoe Landfill last week is that of a baby that went missing in March.

Sharrieckia Page is accused of killing her 7-month-old son, Torrey Brown. She has been charged with child abuse resulting in death and first degree murder. Detectives had been searching for the infant’s body for several weeks.

“I want to thank the men and women of the Commerce City Police Department and the 26 agencies who supported our efforts to find this child,” said Commerce City Acting Chief Saunier. “It was important to the officers and volunteers involved to provide some sense of closure to family members in this difficult case.”

7-month-old Torrey Brown (credit: the Brown family)

Copter4 flew over as FBI and police detectives searched for the baby’s remains at the Denver Arapahoe Disposal Site in April.

Over a 53-day period, 500 people from 26 agencies and community organizations across the state and nation participated in the search. Approximately 19,300 hours were spent searching the 2 and-a-half-acres, about 13,000 tons, of the regional solid waste landfill.

Working in 12-hour shifts at a cost of approximately $10,000 per day, crews sorted through 9,900 tons of waste, over one million square fee, before finding the remains.

At the time of the initial disappearance investigation that began March 29, police said they believed the child was no longer alive but would not reveal why. Detectives said the child died at the hands of his mother.

Sharrieckia Page (credit: Adams Co. Sheriff)

At the Pinecrest Apartment complex where Page was living in Commerce City with her two other children, officers taped off dumpsters with crime scene tape while they searched the area. Officers also carried away a bassinet and other items from inside her apartment.

Investigators said they received information that Page had been seen near one of the dumpsters. If Torrey’s body was placed there, it may have gone into a garbage truck and emptied into the landfill.

Police tape surrounds a dumpster on Friday near where the baby was reported missing on Thursday in Commerce City. (credit: CBS)

More details about the investigation have not been released because the case has been sealed.

Page is scheduled for a preliminary hearing on July 20 in Adams County District Court.