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PLACER COUNTY, Calif. (KTXL) — Murder charges have been filed against the Placer County 19-year-old who allegedly killed his parents.

The Placer County District Attorney’s Office said it filed a criminal complaint against Dennis Lynch, charging him with two counts of murder with special allegations.

Lynch was arrested Monday after the Placer County Sheriff’s Office said they conducted a welfare check at a home on Lake Forest Drive in Loomis. As deputies knocked, no one answered, but they said they could smell a foul odor coming from behind the door.

While deputies worked on finding a way inside, Lynch raced from the house with a replica handgun and escaped into a nearby forested area.

While deputies searched for Lynch, they said additional law enforcement entered the home and found the bodies of 80-year-old Gerald Upholt and 67-year-old Katheryn Lynch.

A short time later, deputies said they found Dennis Lynch in a field on Lomida Lane before he ran from them again. Deputies said he then made his way to a gated community off Auburn Folsom Road.

When deputies confronted him, they said he was armed, and shot him. He was taken to a nearby hospital with injuries that were not life-threatening.

He has since been appointed an attorney by the public defender’s office and will appear in court on April 13. He is being held without bail.

Court records show Dennis Lynch has had two recent run-ins with law enforcement after allegedly stealing a dirt bike.

He is scheduled to appear in court on Friday for allegedly stealing a forklist last November.

Back in January, the Placer County Sheriff’s Office said it recovered a boy’s stolen and vandalized dirt bike and later identified the suspect as Dennis Lynch. He was arrested at a home in Penryn and charged on suspicion of vehicle theft and possessing stolen property, as well as committing a felony while out on bail.

Longtime neighbors Terrie and Mike Crosetti said Kathryn Lynch adopted Dennis Lynch from Russia.

“He was between 2 and 3 when she adopted him. He was just a darling little blonde boy that was happy, had a smile all the time,” Terrie Crosetti told FOX40.

Despite their recollection of Lynch first getting adopted, they noticed problems among the family over the years.

“As the years progressed, he would get into a little bit of trouble around here. Occasionally break a window,” Mike Crosetti recalled. “As he got older, the events were far more serious, required some intervention, by the parents and made by the department.” 

In an Instagram post by Dennis Lynch from 2018, he wrote: “I hope someone f—- with me at school cuz I’ll literally smash their face in. And please anyone who doesn’t think I will, come and find out.” 

A deputy told FOX40 he responded to the home several times over the years, as did other deputies, for problems with Dennis Lynch.

“It’s been a tragic, tragic end to probably what has been a very difficult life for all of them,” Terry Crosetti said.

Investigators are still determining the cause of death of Katheryn Lynch and her boyfriend Upholt. Court documents on their son stated that a deadly weapon was used but did not specify what type of weapon.