The State’s Attorney’s Office for the Judicial District of Danbury is charged, pursuant to Article IV, Sec. 27 of the Connecticut State Constitution5 and Connecticut General Statutes (C.G.S.) Sec. 51-2766 et seq., with the investigation and prosecution of all criminal offenses occurring within the Judicial District of Danbury. The Connecticut State Police have the responsibility to prevent and detect violations of the law and this State’s Attorney has worked with and relied upon the Connecticut State Police since the incident occurred. The investigation has been local, state and federal agencies, both in and out of Connecticut. While no report is statutorily required of the State’s Attorney once the investigation is complete, it has been the practice of state’s attorneys to issue reports on criminal investigations where there is no arrest and prosecution if the state’s attorney determines that some type of public statement is necessary.7 Given the gravity of the crimes committed on December 14, 2012, a report is in order. The purpose of this report is to identify the person or persons criminally responsible for the twenty-seven homicides that occurred in Newtown, Connecticut,8 on the morning of December 14, 2012, to determine what crimes were committed, and to indicate if there will be any state prosecutions as a result of the incident. Many witnesses to this case have expressed great concern that their identities will be disclosed publicly and make them susceptible to threats or intimidation as a result of their cooperation or connection with the investigation.9 This cooperation has been essential and greatly appreciated. As a result of the witnesses’ concerns, this report will not identify lay witnesses, except where necessary. Consistent with Public Act 13-311,10 exceptions to the state Freedom of Information Act11 and C.G.S. Sec. 17a-101k(a) 12 this report will not list the names of the twenty children killed in Sandy Hook Elementary School, nor will it recite 911 calls made from within the school on that morning or describe information provided by witnesses who were in the classrooms or heard what was occurring in the classrooms. It is not the intent of this report to convey every piece of information contained in the voluminous investigation materials developed by the Connecticut State Police and other law enforcement agencies, but to provide information relevant to the purposes of this report.