A Mississippi man has been arrested by federal agents in connection with the ricin-laced letters sent to President Obama and two other public officials, Fox News confirmed Saturday morning.

The suspect Everett Dutschke, 41, is a martial arts instructor. He was taken into custody by U.S. marshals at his home in Tupelo, Miss. Federal investigators dropped charges Tuesday against their first major suspect, Elvis impersonator Paul Kevin Curtis.

Dutschke was arrested without incident by the FBI at about 12:50 a.m. Saturday, and handed over to the U.S. Marshals Service. His home and business were previously searched as part of an investigation into ricin-laced letters allegedly sent to President Obama, Sen. Roger Wicker, R-Miss., and a judge.

Dutschke’s attorney, Lori Nail Basham, did not immediately respond to phone or text messages Saturday. Earlier in the week, Basham denied any involvement by her client in the letters. Dutschke also denied involvement.

“My family knows I don’t have anything to do with this,” he said earlier. “The people who actually know me, know I don’t have anything to do with this.”

There are reports of an ongoing feud between Curtis and Dutschke.

Curtis’ attorney, Christi McCoy, said Saturday: “We are relieved but also saddened. This crime is nothing short of diabolical. I have seen a lot of meanness in the past two decades, but this stops me in my tracks. ”