About 150 firefighters battled the fast-moving blaze, which raged just before 2 a.m. at the Foxcroft Road home where a woman, her fiance and one of her sons were sleeping.
The fire broke out around 2 a.m. Tuesday at a home on Weichers Street in Lake Ronkonkoma and quickly spread to the first and second floors.
The 19-year-old has pleaded not guilty to charges of arson, bias intimidation and criminal mischief.
Prosecutors told the court that 19-year-old Anthony Graziano confessed to firebombing another synagogue in Paramus along with a home attached to a synagogue in Rutherford.
Random, But Regular Police Protection Coming For Synagogues In Wake Of Recent Attacks In Northern N.J.
The firebombing of Rabbi Nosson Schuman’s residence next to Congregation Beth El marked the fourth hate crime targeted at a Jewish center in the past month.