A firefighter and paramedic with the Lealman Fire District has been arrested on aggravated child abuse charges.
Jeremy Graham, 37, was booked into the Pinellas County Jail.
On Monday, Pinellas Park police officers were called to a hospital where Graham's 4-month-old son was being treated.
Police said the child had been taken to the hospital twice recently. While he was there, doctors discovered old and new injuries that indicated head trauma and it was reported as possible child abuse.
Investigators said Graham was taking care of the child at the time.
The Lealman Fire District issued a statement calling Graham, "a star employee and loving father."
It said he has received numerous commendations, including Paramedic of the Year.
"Jeremy is the guy who didn't think twice about jumping into a murky pond to rescue a lady drowning in a submerged car," the statement read.
It also said he leads a program to teach children fire safety and takes in rescue animals.
Pinellas Park Police said when he found out he was about to be arrested for child abuse, he turned himself in.
They said the injuries to the child do not appear to be life threatening.
The Lealman Fire District said Graham has been placed on administrative leave pending the outcome of the investigation.
Bay News 9 did try to talk to Graham's family members but no one came to the door.