NEW : Authorities finished searching 18 ` ` spots of interest '' in Long Island , New York on Thursday . Note : Their search did not yield additional evidence in their investigation of a possible serial killer . A helicopter has been hovering over the Tobay Beach area since morning . The bodies are not linked to the bodies of four prostitutes found near Atlantic City in 2006 .
NEW : Authorities finished searching 18 `` spots of interest '' in Long Island , New York on Thursday . NEW : Their search did not uncover additional evidence in their investigation of a possible serial killer . A helicopter has been hovering over the Tobay Beach area since morning . The remains are not linked to the bodies of four prostitutes found near Atlantic City in 2006 .