Demarest, N.J., defensive end Andrew Trumbetti traveled back to South Bend for junior day with Notre Dame as the favorite after landing an offer from the Irish last summer.
Despite expressing an interest in returning to Florida before ending his recruitment, he decided to join Notre Dame's 2014 recruiting class as the fifth verbal commitment in the group.
"Officially part of the Notre Dame family," the 6-5, 250-pound four-star player said via Twitter.
Trumbetti had offers from Boston College, Maryland, Michigan State, Purdue, Virginia and others.
He's rated by 247Sports as the No. 3 player in New Jersey, the nation's No. 7 strongside defensive end and the No. 101 overeall prospect in the land.