The man convicted of killing LSU basketball star Wayde Sims in 2018 has been found dead in prison, officials announced on Monday ... just days after he received a life sentence for second-degree murder.
The East Baton Rouge Parish Sheriff's Office confirmed to TMZ Sports that a medical team rendered aid to 23-year-old Dyteon Simpson after they found him unresponsive in prison at around 8 PM on Sunday.
The sheriff's office said Simpson was pronounced dead a short time later.
A police spokesperson tells us a preliminary toxicology report revealed Simpson appeared to have fentanyl in his system.
"The EBR Coroner will conduct an autopsy and determine final cause of death," the spokesperson added. "This investigation is ongoing as to the cause of death and possibility of contraband."
We reached out to Simpson's lawyer, Margaret Lagattuta, but she declined to comment on the incident.
As we previously reported, Sims -- who played forward for the Tigers' men's hoops team -- was shot in the head during an altercation at a Subway near the LSU campus on Sept. 28, 2018.
Simpson was arrested for killing Sims a day later ... and was ultimately charged with second-degree murder.
Earlier this year, a jury found him guilty of the charge ... and last week, he was sentenced to life in prison.