Daniel Shea, left, is accused of posing as an FBI agent and handcuffing, assailing and threatening to kill employees at a Boulder web-design firm on Friday. Police are seeking a second man, known only as "Davy," who they say was involved.

The founder of a yoga company was arrested over the weekend after police allege he posed as an FBI agent and cuffed, assaulted and threatened to kill employees at a Boulder web-design firm that worked on a project for him.

Daniel Shea, 45, was arrested in Lyons with the assistance of the Boulder County SWAT team on Sunday. He is facing numerous charges, including burglary, impersonating an officer, criminal extortion and multiple counts of felony menacing, kidnapping, false imprisonment and assault.

According to an arrest affidavit, two workers at the Goozmo web-design firm in Boulder were in their office at 1645 Canyon Blvd. on Friday when they took a meeting with a man who identified himself only as “Davy.” The two men told police that Shea then entered the building dressed in a “FBI uniform” — described as a raid vest with tactical gear, including a Taser, a knife and a gun in a holster — and along with Davy cuffed the two men.

The two Goozmo employees said Shea had contracted them for a project involving his company, Yogible, which describes itself as a yoga travel and teaching company. According to the affidavit, Shea said the $30,000 he spent on the project had “ruined his life,” and demanded Goozmo repay him. The two men told police Shea used a stun-gun-type device on them and threatened them with both a gun and knife — and also said he had hired people to kill their families. One of the men said Shea specifically mentioned his 7-year-old child.