According to this Roosevelt Island Operating Corp (RIOC) Public Safety Department (PSD) Incident Report:
2/14/14 – 1958 – 580 Main St. – Crim. Possession of Weapon – NYPD conducts arrest
A NYPD Press Spokesperson reported that officers from the 114th Precinct responded to a 911 call of a gun spotted at 580 Main Street (Roosevelt Landings). Upon reaching the 4th floor of the building, the NYPD officers observed a gun on a ledge and arrested 3 persons in close proximity to the gun. RIOC PSD Director Jack McManus adds that PSD received an anonymous call about a gun being spotted at the location. PSD then called 911 and NYPD responded. Roosevelt Island criminal justice and public safety issues will be the subject of a Town Hall Meeting on Monday, February 24. 
Image From State Senator Jose Serrano’s Office As previously reported:
Senator Jos M. Serrano and Manhattan District Attorney Cyrus R. Vance, Jr. are sponsoring a very important Town Hall Meeting for the Roosevelt Island community. Attendees will have the opportunity to interact directly with DA Vance and our local elected officials, while learning more about the services provided by the District Attorney’s office.
Do you have concerns about public safety and the role of the DA’s office? Suggestions or questions? The panel, which will include DA Vance and Senator Serrano, will lead a discussion enabling Roosevelt Island residents to have their voices heard. Please join us!
This Town Hall Meeting will take place on Monday, February 24th, from 6:00pm-7:00pm at the Good Shepherd Community Center Auditorium, located at 543 Main Street, Roosevelt Island, NY 10044.
Light refreshments will be served.
This is an important meeting. Hope to see you there. UPDATE 2/26 – According to a Manhattan District Attorney’s Office representative, the weapons charge was dismissed. The weapon was a BB gun. A charge of marijuana possession remains.