EVERETT — A man allegedly caught in Everett with a car full of drugs and a storage locker packed with guns, including an anti-tank weapon, has been indicted by a federal grand jury.

A judge in U.S. District Court in Seattle last month ordered Aaron Knapp held pending trial. Knapp, 41, was indicted a few weeks earlier on multiple drugs and weapons charges stemming from investigations by the Snohomish Regional Drug and Gang Taskforce and the Everett Police Department.

The Bothell man allegedly was stopped in June and a drug-sniffing dog nosed out narcotics in Knapp’s car and storage locker. Police found a combined pound of methamphetamine and heroin, three guns and $47,000 in cash in Knapp’s vehicle. A bomb- sniffing dog signaled that there were explosives in Knapp’s storage locker. Investigators obtained a search warrant and found more than a dozen firearms, including a Finnish anti-tank gun dating back to World War II.

Knapp is a convicted felon and prohibited from possessing firearms.

The Bothell man has been under investigation for pedaling drugs in Snohomish County since at least 2013. Detectives were watching Knapp’s Lynnwood house after reportedly hearing from several sources that Knapp was selling large amounts of meth and heroin out of the home. Sources reported that Knapp was buying and selling guns, too, police wrote in a search warrant.

Knapp was out of custody in June pending trial in two separate Snohomish County drug cases when he was arrested outside an Everett storage unit. Police said he was driving a Mercedes loaded with more than $50,000 worth of heroin and meth.

Thirteen firearms, including shotguns and rifles, were found in the storage locker. About half the guns were stolen.

Knapp reportedly told detectives he was an unemployed student collecting money from a state Labor and Industries injury claim. Knapp is listed as the owner of The Filthy Technician, an automotive repair business, according to state records.

Prior to his arrest in June, Knapp had been charged with multiple crimes stemming from a December 2013 arrest by Everett police.

In that case, Everett police got word that Knapp was dealing drugs out of his house on 75th Street SE. An informant reportedly told cops that he’d bought meth and heroin from Knapp more than 30 times. Everett officers arrested Knapp as he left his Everett home. He reportedly had a loaded .38-caliber semiautomatic handgun tucked in his waistband. Police later searched Knapp’s house and seized a quarter of a pound of heroin and about a half-pound of meth. They also found a handgun, rifle, holsters and ammunition.

Snohomish County deputy prosecutor Janice Albert last month dismissed Knapp’s charges here, citing the pending federal prosecution.

He is now charged with 10 different crimes, including drug distribution and being a felon in possession of firearms.

Trial is scheduled to begin later this year.

Diana Hefley: 425-339-3463; hefley@heraldnet.com. Twitter: @dianahefley.