NEWTOWN, Conn. (AP) — Authorities say they may be able to release the identities of the victims of the Connecticut school shooting on Saturday morning.

State police Lt. Paul Vance said Friday evening that officials were "cautiously optimistic" that they could have all the identities pinned down by the morning.

He says that authorities already have preliminary identities but that "it's a very meticulous process."

Twenty-year-old Adam Lanza is believed to be the gunman who shot up Sandy Hook Elementary School in Newtown on Friday, killing 26 children and adults, then himself.