Trial of Beaumont woman accused of stabbing, killing boyfriend

BEAUMONT, Texas — A 52-year-old Beaumont woman convicted of fatally stabbing her boyfriend 24 years ago is on trial this week for the 2020 stabbing death of another boyfriend.

Naomi Loutricia Johnson, 52, of Beaumont, is accused of fatally stabbing her boyfriend, Kevin Royce McMahon, 48, of Beaumont, in 2020. She then attempted suicide by taking rat poison and d other substances, according to records.

(EDITOR'S NOTE: The video above was first released in July 2023.)

Jury selection began Monday in Jefferson County Criminal Court, where Judge John Stevens is presiding over the case.

After a 2004 trial that ended in a hung jury, Johnson was convicted of murder and sentenced in 2006 to 35 years in prison for the December 2000 death of her then-boyfriend, Terry Boulwen. Her conviction was overturned on appeal in 2008 and she was granted a new trial.

Before her retrial, she pleaded guilty to the less serious charge of manslaughter. She was sentenced to 20 years in prison and was released on parole in January 2013, according to state records.

She was on parole the night of the 2020 murder.

In 2020, the night of McMahon's murder, detectives arrived at a home on Booker St. in Beaumont and noticed the porch light out and a bloody footprint outside the front door.

After entering, police saw a very large amount of dried blood covering the entryway and leading to the living room, with more footprints in the dried blood, according to a probable cause affidavit in the case.

On the cushions of each piece of furniture was a dried substance that looked like vomit, police said.

On the coffee table, detectives saw a note written on a white paper envelope that was written as a possible suicide note and signed Naomi.

Next to the note was a set of three knives of different sizes. The smaller knife had been removed from the package.

Johnson was inside the residence and was taken to hospital after paramedics said she attempted suicide by ingesting rat poison and other substances found at the scene , like a bottle of coolant antifreeze and a black bottle of drain cleaner.

Detectives then found McMahon's body near a bedroom with a large laceration/puncture wound to his lower right abdomen.

They believe he had been dead for “an extended period of time.”

McMahon was found with a white, powdery substance on the left side of his stomach, according to the affidavit.

On the dresser in the room where McMahon was found nearby and where Johnson was taken by EMS were two cups of liquid, one red and one
YELLOW.

Johnson admitted to EMS personnel that she had attempted suicide and told officers she had been abused by McMahon, according to the affidavit.

Detectives determined that Johnson and McMahon lived together at that residence and argued frequently, according to neighbors and family members.

The last time McMahon was seen alive was on the afternoon of June 27, 2020, according to the affidavit.

All doors and windows in the house were locked and there were no signs of forced entry.
the entry was noted by responding officers.

Detectives saw photographs of Johnson taken the night of the murder and noticed she had a bruise on her leg and scratches on her left, inner wrist and neck that appeared recent.

The scratches appear intentional and possibly made with the tip of a knife, according to the affidavit.

Detectives also noticed dried blood on the bottom of his feet when looking at the photos.

Due to evidence found at the crime scene and information gathered, detectives believe Johnson intentionally and knowingly stabbed McMahon to death.

She did not seek medical attention for McMahon and attempted suicide by ingesting toxic substances, according to the affidavit.

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This is a developing story. We will update with more if and when we receive more confirmed information.

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