The Fourth Precinct reports the arrest of an Oceanside man on Thursday March 30, 2023, at 8:35pm in Oceanside.According to Police, a Nassau County Sergeant placed a telephone call to follow up on a complaint submitted by Defendant Donald Schreiner, 34, of 235 Madison Avenue. During the call the defendant threatened to use an assault rifle that he owned to harm a Fourth Precinct Officer. The Sergeant and two Officers responded to the Defendants home and placed him under arrest. The rifle was located and removed from the scene. No injuries were reported.Defendant Donald Schreiner is charged with Criminal Possession of a Firearm, Criminal Possession of a Weapon 3rd Degree and Aggravated Harassment 2nd Degree. He will be arraigned on Friday March 31, 2023, in First District Court 99 Main Street Hempstead.