Auburn Police say that 19-year-old Jerry “Mike” Clayton, whose body was found in the smoking embers of a double-wide mobile home at 29659 142nd Ave. SE last week, was murdered, and that his killers set the house ablaze to cover the crime.

On Wednesday afternoon, the King County Prosecutor charged Dylan Scott Mullins, 19, and 17-year-old Sebastian Michael Gregg with one count each of first-degree murder, first-degree arson and first-degree burglary. The court also increased the bail of each from the original $1 million to $2 million.

A KCME spokesman on Monday confirmed that an autopsy on Clayton’s body performed over the weekend found he had died of “multiple gunshot wounds.”

Here is a summary of what happened, according to press releases and the statement of probable cause the Auburn Police Department forwarded Monday to the King County Prosecutor.

Seeing smoke and flames at the mobile home at about 11:35 a.m. July 6, a neighbor called 911. The first fire crews to arrive saw that the home was engulfed in flames, and quickly determined it would be unsafe for anyone to enter.

Investigators found Clayton’s body the next day. According to the statement, he had been living in the mobile home with his father, Mickey Clayton.

According to the statement, Mullins and Gregg had plotted to lie in wait in the trailer and shoot Clayton in retaliation for having beaten up Mullins.

After shooting the victim and setting fire to the home, according to the statement, Mullins and Gregg stole a truck from the Kent Parks Department and drove it to Grays Harbor County.

When a police officer stopped them in Aberdeen for speeding, according to the statement, the officer ran the plate and learned the truck had been stolen. According to the statement, Mullins and Gregg then gave the officer consent to search the truck and their backpacks, and in the truck the officer found guns that had been stolen from the burned home. Police arrested the two and took them to the Grays Harbor County jail in Montesano.

According to the statement, Mullins and Gregg later independently admitted to having shot Clayton and to having burned the house.

According to Dan Donohoe, a spokesman for the King County Prosecutor, Mullins, whom records list as a transient, made his first appearance in court Saturday, at which a judge made a probable cause finding and set his bail at $1 million.

As for Gregg, also listed as a transient, a juvenile court judge on Saturday found probable cause to hold him, and a detention review on Monday upheld the decision. According to police, his parents have a no-contact order against him.

In her plea to to the court Wednesday to increase the bail of Mullins and Gregg to $2 million, Senior Deputy Prosecutor Adrienne McCoy cited the premeditation of the murder and arson and the criminal history of both individuals, which, she noted, includes a recent act of burglary and attempted arson.

“These defendants have demonstrated through their actions that they are exceedingly dangerous. Bail in the amount of $2 million is necessary to protect the community from them,” McCoy said.