A funeral service has been planned for Charlie and Braden Powell for Saturday afternoon.

The public is invited to Life Center First Assembly in Tacoma at 11:00 a.m. on Saturday, Feb. 11.

The Curnow Funeral Home in Sumner has set up an obituary and memorial page for 5-year-old Braden and 7-year-old Charlie.

So far, pages and pages of messages have been left from people all over the country.

Autopsy reports released Monday evening revealed the boys died of carbon monoxide poisoning in a Graham house explosion, but they also had cut injuries to their necks. A hatchet and five gallon gas can were found near the bodies in the burned home.

So far, investigators have not found anything in the house that will lead them closer to the boys' missing mother, Susan Cox Powell. Josh Powell, the boys' father and mastermind in the home explosion on Sunday, was named a person of interest in the Dec. 2009 disappearance.

On Tuesday, Salt Lake County District Attorney Sim Gill acknowledged for the first time that they believe Powell is dead, and the case is being handled as a murder investigation.

Dispatch audio released on Monday captured the scene as fire engines raced to the home after a social worker called 911. She had just brought the boys over to see their father for a supervised visit. She knew something was wrong when she smelled gas from the house and Josh Powell slammed the door in her face, but she could not get to the boys. She backed away and called 911, but police say the fire raced through the home too quickly to save the Powell boys.

Listen to first responders' audio:

Heard from firefighters dispatch:

- Incoming units, we have another caller on the phone that states that they believe there are two children and a father inside the residence.

- Also they're also indicating they believe this was an intentional fire. The RP providing this information is a CPS worker for those residents.

- She is at scene, she believes the dad and two children, ages 5 and 7, are inside the house.

- There's a mini-van in the garage.

- Engine 95: Confirmed one victim, three feet in size.

- No victims found at the same location as the first.

MyNorthwest.com, Staff report

You might also be interested in:

• Timeline: Josh Powell investigation, Susan Cox Powell disappearance
• Photos: Josh Powell, 2 sons killed in home explosion
• Autopsies: Josh Powell's sons suffered chop injuries