A guilty plea brings a swift sentence in a case that stunned a small East Texas community.
MARSHALL, TX – A 37-year-old man will spend the next three decades in prison after admitting he fatally stabbed his mother inside the apartment they shared, then called 911 to report the killing. Brian Keith Griffin pleaded guilty Thursday to one count of murder in Harrison County, receiving a 30-year sentence from 71st Judicial District Judge Brad Morin.
The case centers on the November 2024 death of 55-year-old Tammy Bogue, who was found with multiple knife wounds on the floor of her home on Norwood Street. The attack unfolded in Marshall, a city near the Texas-Louisiana border about 40 miles west of Shreveport.
911 call and admission
Court records show Griffin called emergency services just before 12:45 p.m. on Nov. 27, 2024, telling dispatchers what he had done. Responding officers located Bogue inside the residence, where she was pronounced dead at the scene, according to a statement from the Marshall Police Department.
“During the custodial interview, Griffin admitted to stabbing his mother multiple times intending to kill her,” police wrote in a probable cause statement attached to the charging document.
Griffin’s responsibility for the killing was not contested. During sentencing, he acknowledged a history of mental illness and prior treatment, including following a suicide attempt, but stated he was not legally insane at the time of the attack. His defense attorney confirmed he had been found competent to stand trial.
Plea agreement avoids trial
Prosecutors said the case could have turned into a complex legal battle over mental health had it gone before a jury. “It was going to be a battle of the experts,” Harrison County District Attorney Reid McCain told The Marshall News Messenger.
Griffin had faced a potential sentence of up to 99 years if convicted at trial. Instead, the plea agreement, supported by both the state and surviving family members, set a punishment range that resulted in the 30-year sentence.
“I had a really good family,” McCain said. “They were easy to work with. I think they love him, but also know that he needs to be held accountable. So we had multiple conversations, and they were fine with the 30-to-40 (year) range.”
Still, not all relatives accepted the explanation tied to Griffin’s mental health. Bogue’s sister rejected that narrative in court, emphasizing personal responsibility.
“This was not a tragedy,” she said. “It was a betrayal of trust to our family. She deserved to live, deserved to grow old…to love and be loved. We not only lost one family member that day. We lost two. And like you told (the investigators) ‘She had to go.’ Our final words to you, Brian: ‘Now you have to go.'”
Brian Keith Griffin, Marshall Texas murder, Tammy Bogue stabbing, Harrison County sentencing, Texas matricide case
