[1] Sgroia opened a butcher shop and lived with his brother Biagio on 117th Street in Harlem.
On 7 September 1916, Sgroia and other gang members ambushed Morello and his associate, Charles Ubriaco, who had been lured into a trap after having a few drinks and were on their way to a coffee house.
In May 1917, a Navy Street gang member became a government witness and implicated Sgroia in the Morello murder.
He was convinced to briefly return to New York by the prosecutors at the trial of Tony Paretti, where Sgroia gave evidence against him, leading to his conviction.
[2] After that, he returned once again to Italy, where he lived a normal life with his family, until he died on 10 May 1940, aged 53.