Addison Strychalsky, 2, and her mother, Jennifer, left, of Newtown Conn., play pets Tilley, a golden retriever therapy dog, during a visit from the dogs and handler Mary Minard, right, to a memorial for the Sandy Hook Elementary School shooting victims, Tuesday, Dec. 18, 2012, in Newtown, Conn. (AP Photo/David Goldman)

Photo by: David Goldman

Addison Strychalsky, 2, and her mother, Jennifer, left, of Newtown Conn., play pets Tilley, a golden retriever therapy dog, during a visit from the dogs and handler Mary Minard, right, to a memorial for the Sandy Hook Elementary School shooting victims, Tuesday, Dec. 18, 2012, in Newtown, Conn. (AP Photo/David Goldman)