EDMOND — A finger cut off the hand of an Edmond homeless man the night he was beaten and stabbed to death has led police to arrest three people.

Dwite A. Morgan, 54, also known as Bicycle Bob, was killed Oct. 18 in his makeshift home behind Farmers Grain Co., 102 E First St., police say.

Connor Adam Mason, 19, of Edmond, was arrested Saturday on a murder complaint after an informant told police Mason said he had killed a homeless guy and had been planning to do so since May, according to a court affidavit.

Also arrested on a complaint of being an accessory to murder after the fact and other complaints were Heather Irene Parker, 19, and Nikolas David Kerr, 19, both of Edmond.

Several people told police that Mason showed them the finger, which was wrapped in a clear plastic glove.

One man told police he saw the finger, which was described as having dirt under the fingernail.

Police said the finger was given to Parker. The woman threw the finger away, the affidavit states. Parker also goes by the name Heather Holden.

Mason told an informant he hit the homeless man in the head with a hammer until the hammer head flew off, then took out his pocket knife, the court affidavit states.

Mason said he cut the victim’s throat to keep him from yelling out, the informant told police.

At one point, Mason said the victim rose up and asked him why he was doing it, the court record shows.

Travis Monroe Jim, 20, of Edmond, earlier was charged with first-degree murder after he confessed to killing Morgan. Jim remained in the Oklahoma County jail without bail Monday.

A decision to dismiss the charges against Jim had not been made Monday, a district attorney spokeswoman said.

Edmond Police Department spokeswoman Glynda Chu said, "Even though there was a confession, we got new leads and followed the evidence that led to Connor Mason.”

A motive still is unknown, Chu said.

A watch without a band supposedly was taken from Morgan when he was killed, she said.

According to the affidavit, Kerr admitted to police he drove Mason back to the scene of the killing to help him look for a flashlight Mason had left behind. Kerr told police Mason pulled back a tarp, exposing Morgan’s body, the court record shows.

Kerr said he knew Morgan was dead because of the large cut in his neck, the affidavit states.

Kerr was charged Oct. 26 with cruelty to an animal in an unrelated incident. He is accused of hitting a two-month-old kitten against the couch about 12 times and using a lighter to burn the kitten’s face and back, court records show.

When asked why he injured the animal, Kerr said, "’cause I’m a sociopath,” the records state.

Mason, Kerr and Parker were being held Monday in the Oklahoma County jail without bail.