WEST PALM BEACH, FLA. (WSVN) - A woman who dressed as a clown to kill her current husband’s then wife made an appearance in court.

Sheila Keen-Warren faced a judge in a Palm Beach County courtroom, Monday morning.

“It’s going to take a while, but we’re not going to dawdle. Once we start looking at the discovery and deciding what the case is about and we have to do, we’re going to do it,” said an official on the case.

The 54-year-old is accused of first-degree murder in connection to a fatal shooting that happened 27 years ago.

Evidence of the chilling murder was placed in the hands of Keen-Warren’s attorneys.

Keen-Warren was arrested back in September in the Virginia town where she lived with her husband, Michael Warren. Back in 1990, he was married to the victim, Marlene Warren.

She was shot in the face on the doorstep of her Wellington house in May 1990 and police believe Keen-Warren committed the shooting.

Detectives said Warren-Keen had walked up to the home dressed in an orange wig, white painted face and a red nose.

“Marlene answered the front door, and the clown had two balloons as well as a bouquet of flowers and went to hand Marlene those items. As she went to receive those items, she commented ‘How nice,'” said Detective Paige McCann of the Palm Beach County Sheriff’s Office.

According to detectives, that’s when the clown pulled out a gun and shot Warren in the face.

“The witnesses at the scene said that the clown just turned around, walked back to the car, got into the white Chrysler LaBaron and just drove away very calmly,” said McCann.

Detectives said it was the same car that had mistakenly been dropped off at the car dealership belonging to the victim’s husband, Michael Warren.

The strategy has remained fresh in one neighbor’s mind.

“I was walking one of my dogs, and I heard what sounded like a nail gun going off,” said neighbor Bill Kramer.

The victim’s husband, later married the woman who is now accused of her murder.

“It was rumored that Sheila Keen and Michael Warren were having an affair,” said McCann. “We now have learned since then, that they have married, and they are currently married. They were living in the Tennesse-Virginia area.”

Twenty-seven years later, police finally caught up with the suspect just minutes from the home Warren-Keen and the victim’s husband once shared.

The arrest was filmed via dashcam.

Keen-Warren is being held without bond and waived her right to a speedy trial. She has pleaded not guilty.

The suspect’s husband was interviewed, and it remains unclear if he will face charges.

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