Article continues below advertisementThe death of Robert De Niro's 19-year-old grandson has resulted in the arrests of five suspects.An investigation remains ongoing more than two years after Leandro Anthony De Niro-Rodriguez tragically died from an alleged accidental drug overdose on July 2, 2023.Article continues below advertisementA Drug Enforcement Administration (DEA) official informed People on Thursday, October 30, that five suspects were taken into police custody in New York and are being charged with death resulting from the sale of narcotics.