JACKSONVILLE, Fla. -- Just hours after a father brought his 4-month-old son to the hospital, that man was charged with murdering the boy.

Adrian Phillip Smith, 34, brought his son to Wolfson Children's Hospital late Friday night, and the infant was not breathing.

Police say doctors pulled a bloody cloth item from Adrian Smith II's throat.

Homicide detectives interviewed the father and gathered evidence at his home on Earnest Street, where they believe the boy was killed, then arrested Smith.

One of Smith's neighbors said he didn't think he could hurt his child.

"He loved that baby; he (was) always with that baby," said the man, who did not want to be identified.

The neighbor said the boy's mother had not been seen around the home for the past two weeks.

Smith is being held without bond in the Duval County jail.