A woman arrested in Sweetwater County in connection with an Oklahoma murder sent multiple texts to the murder victim before his death, investigators have announced.
The Oklahoma State Bureau of Investigation on Friday released more details from its investigation into the murder of 56-year-old Michael “Andy” McGuffee in Blanchard, Oklahoma earlier this month.
Debbie Senft, 47, and Zachary Mussett, 26, both of Texarkana, Texas, are currently in custody at the Sweetwater County Detention Center and are awaiting extradition to Oklahoma to face charges related to the murder.
An affidavit filed in support of charges said a family member went to McGuffee’s home after he did not show up for work on Oct. 15. The front door of his residence was “scorched,” according to the Chickasha, Oklahoma News-Express.
The family member found McGuffee’s body wrapped in a blanket and investigators found he had multiple stab wounds to his chest and neck.
An OSBI agent reported it was likely McGuffee was killed in the living room and moved to his bedroom. It was reported it would have taken two people to move his body.
The inside of McGuffee’s residence had been burned and OSBI found that multiple types of accelerant had been used to set the fire.
OSBI obtained a search warrant for McGuffee’s cell phone and found multiple texts exchanged between McGuffee and Senft, the victim’s half-sister.
“You have always been one of the two most important people in the world to me and I love you so much,” one message Senft sent to her half-brother said. “I would really like to be able to see you and spend some time with you.”
Several items had also been stolen from the home, including multiple guns and the man’s pickup truck, the affidavit said.
Last week, agents discovered that items stolen from McGuffee were pawned in Salina, Kansas.
A few days later, agents recovered the pickup truck at a car wash in Oklahoma City.
The investigation then led agents to Wyoming.
Senft and Mussett were located 15 miles east of Rock Springs on Interstate 80 last week. The Wyoming Highway Patrol pulled over the moving truck Senft and Mussett were driving and agents with Wyoming Division of Criminal Investigation took the pair into custody.
In an interview with OSBI, Mussett allegedly said he had gone to McGuffee’s house with his mother. The three talked, ate and watched movies.
Mussett told the OSBI agent that at one point, things became “fuzzy” and that he remembered leaving the residence in the car he and his mother had driven to McGuffee’s house.
He also said his mother may have left in McGuffee’s pickup, according to the affidavit.