HOLLY HILL, Fla. -

A Central Florida man is accused of beating his sleeping father in the head with a sledgehammer after a night of playing puzzles.

Holly Hill police say 33-year-old Vinayak Shanbhag was arrested Saturday and charged with attempted first-degree murder.

Officers were called to the home Saturday morning to assist on a medical call. They found Shanbhag sitting on a couch with his mother. Police found Panduran Shanbhag in a pool of blood with a bloody sledgehammer nearby.  He was taken to a hospital in critical condition.

Shanbhag's mother said she had heard her husband coughing but didn't think anything of it because he had a cold, said police, who added that the couple sleeps in separate bedrooms.

The son told police his father said something that upset him while playing puzzles and he decided to attack him.