Saw this notification on my phone when I woke up and thought it was a horrible error, like a typo or a case of mistaken identity.

Unfortunately, that notification was correct, and multiple outlets confirmed the death of 33-year-old former NFL receiver Demaryius Thomas.

From ESPN Senior Writer Jeff Legwold:

ENGLEWOOD, Colo. — Former Denver Broncos wide receiver Demaryius Thomas, whose quiet demeanor belied a burning desire to achieve what he routinely called “everyday greatness,” has died at age 33, according to police.

Roswell, Georgia, police said Thursday night that Thomas was found dead in his home. Preliminary reports, according to the police, indicated Thomas’ death might have resulted from a medical issue.

LaTonya Bonseigneur, a first cousin who grew up with Thomas, so close they considered themselves siblings, told The Associated Press that the family believes he died from a seizure.

“He had been suffering from seizures for over a year, and we believe he had a seizure when he was showering,” Bonseigneur said early Friday. “We’re not sure when he died. We just spoke with him yesterday.”

A seizure? Man, that’s really sad.

Thomas played most of his NFL career in Denver, where he won a Super Bowl and earned four Pro Bowl nods. He had five 1,000-yard receiving seasons and caught 63 regular season touchdowns, though his most famous highlight is definitely the walk-off pass thrown by Tim Tebow in the AFC Wild Card round:

Sad story. RIP.