Police descended upon Long Island serial killer suspect Rex Heuermann’s Massapequa Park home to carry out a new search warrant on Monday, May 20. In the latest development in the Gilgo Beach murders investigation, the Suffolk County Medical Examiner was reportedly seen carrying “large evidence bags” out of Heuermann’s residence, RadarOnline.com has learned. According to NewsNation, no family members were present at the home when police arrived. While Heuermann’s estranged wife, Asa Ellerup, confirmed that the home had been searched on Monday, it’s unclear what prompted the latest search warran…