The standout athlete, son, and brother was one of the 14 victims killed in the New Year's Day terrorist act in New Orleans.
He was with friends on Bourbon Street when a man inspired by ISIS drove his truck into a crowd of people.
Victim killed in New Orleans attack ID'd as Philadelphia college grad
DiMaio's funeral was held at St. Catherine's Church in his hometown of Holmdel and was packed with friends and family. They say his life was defined by positivity and kindness before it was cut short.
Billy's parents Bill and Tracie DiMaio are heartbroken.
"Billy had a smile that could light up a room, and his laughter was truly infectious," the family said in a statement. "His energetic personality inspired everyone around him. He cared for others more than himself and, as the oldest brother to Samantha and Anthony held a unique and irreplaceable role in their lives as well as cousins and friends. He will be dearly missed."
DiMaio graduated in 2022 from Philadelphia's Chestnut Hill College where he was a midfielder on the lacrosse team, according to the athletic director.
On Friday, the State of Louisiana will remember Billy, as it has honored each victim with a special day, paying tribute to those who lost their lives in the heinous act of violence.
New Jersey will also honor DiMaio on Friday and lower flags to half-staff.
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