The parents of an Ocean County boy who was 4 years old when he fatally shot a 6-year-old neighbor have been ordered to pay nearly $600,000 to the slain youth's family.

Anthony and Melissa Senatore will also have to pay punitive damages to Brandon Holt's parents under the ruling issued Monday. But that amount hasn't been determined.

The rulings came in a wrongful death suit brought by Holt's family. The Senatores were ordered to pay $572,588.

Anthony Senatore has admitted keeping a loaded .22-caliber rifle unlocked in his bedroom, where his son found it in April 2013. The boy took it outside and shot Brandon Holt once in the head. The child died the next day.

Senatore received a three-year prison term last year after he pleaded guilty to child endangerment.