(CNN) -- Friday's mass shooting at a Connecticut elementary school left six adults and 20 children dead, a state police spokesman said. Eighteen students were pronounced dead at the scene, and two others died at the hospital, said Lt. Paul Vance of the Connecticut State Police. The six adults died at the scene, among them were the school's principal Dawn Hochsprung, and school psychologist Mary Sherlach.
The gunman was also killed, along with another individual at a Newtown residence. The death toll is at 28.
Police did not discharge their weapons at any time when responding to Friday's mass shooting at a Connecticut elementary school, police spokesman Lt. Paul Vance told CNN's Wolf Blitzer. However, he could not confirm whether the suspected shooter -- who died at the scene -- killed himself, saying that would have to be determined by the medical examiner.
The suspected gunman has been identified as 20-year-old Adam Lanza, three different law enforcement officials told CNN. He died at the scene.
Nancy Lanza, the mother of the suspected gunman, is dead, according to two law enforcement sources close to the investigation. A law enforcement source said that she was found dead at a Newtown residence. She was a teacher at Sandy Hook, sources said.
An official close to the investigation said the three guns found at the shooting site were legally purchased by Nancy.
Authorities in Hoboken, New Jersey, were questioning the suspect's brother, Ryan Lanza. Law enforcement sources said they did not label him a suspect. Law enforcement officials said Lanza's father, who lives in Connecticut, was also questioned.
The Newtown shooting is the second-deadliest school shooting in history of the United States, behind the Virginia Tech shooting in 2007 that left 32 people dead.
Lt. Vance said one injured victim, a female employee of the school, is "doing well." He also said the public release of the victims' names may come on Saturday morning.