(MASSAPEQUA PARK, N.Y.) — Investigators returned Monday to the home of a New York architect charged in a string of slayings known as the Gilgo Beach killings. State and county police officials descended on Rex Heuermann’s rundown, single-family home in Massapequa Park on Long Island sometime before 7 a.m. [time-brightcove not-tgx=”true”] They used their vehicles and set up barriers to cordon off the block and raised white tents in front of the red house. Officers removed boxes and bags of evidence from the house as forensic and crime lab units spent much of the day on site.