GREAT BEND, KS (KCTV/AP) -- Three carnival workers have been arrested in the deaths of two vendors who disappeared from a fair in Kansas and whose bodies were found days later in a shallow grave in an Arkansas forest.

Police Cpl. Jonathan Wear said the suspects have been jailed without bond in Van Buren, Arkansas, on suspicion of abuse of a corpse, felony theft and tampering with physical evidence in the deaths of Sonny and Pauline Carpenter of Wichita, Kansas.

A probable cause affidavit released Thursday says one of the suspects, Michael Fowler, admitted to police that he shot the Carpenters in Great Bend. He told Van Buren police that Rusty Frazier and Kimberly Younger, also known as Myrna Khan, were with him when the couple was killed.

No charges have been filed in the Carpenters' deaths. The affidavit does not discuss a motive for the killings.

Van Buren police found the suspects at an apartment complex after receiving a call that a woman with them was concerned for her safety. The woman and another man were with the suspects when officers arrived, according to the affidavit.

Officers also found a pickup truck that belonged to the Carpenters.

Wear said he didn't know if the two men and one woman who have been arrested had attorneys.

Authorities believe the Carpenters were killed Friday after meeting the carnival workers as the couple sold crafts, jewelry, purses and other handmade items during the fair in Barton County, Kansas, Wear said.

He couldn't provide a cause of death, saying the bodies would be sent for an autopsy.

Investigators believe the carnival workers used the couple's recreational vehicle Saturday to drive the bodies 320 miles (515 kilometers) to Van Buren, Arkansas, where a relative of one of the workers lives. Wear said authorities suspect the bodies were buried Monday next to a creek bed outside the small community of Natural Dam in the Ozark National Forest.

Arkansas authorities began investigating after a fourth person who was traveling with the carnival called her sister and said she was scared, Wear said. The woman didn't witness the killings but saw other elements related to the crime. He declined to be more specific.

The woman's sister then called police around midnight Tuesday, and officers went to an apartment complex in Van Buren where the carnival workers were staying. Authorities found the bodies the next morning hidden beneath a mattress that had been buried under rocks.

As of Friday December 8, three people have been charged with capital murder for the deaths of the Wichita couple.

The Kansas Attorney General filed charges against 52-year-old Kimberly Younger, 54-year-old Michael Fowler of Florida and 35-year-old Rusty Frasier of Texas.

Investigators have not released a possible motive.

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