 This is WFMD News. Montgomery County authorities are investigating the death of a three-year-old in Rockville. The Emergency Communications Center received a call about a missing boy at 11.45 p.m. on Friday. Rockville police responded to Elmcroft Court where the child was found in a neighborhood pool. CPR was given to the boy and he was taken to the hospital where he was pronounced dead. The investigation is ongoing. Authorities do not suspect foul play.