By Donny IqbalNopri Ismi PALEMBANG/PANDEGLANG, Indonesia — Authorities in Indonesia are investigating possible links between a recent bust of rhino horns for sale and a killing spree of Javan rhinos still being uncovered in court. Police working with agents from the Ministry of Environment and Forestry announced on Aug. 27 the arrest of a 60-year-old man in Palembang, South Sumatra province, for allegedly attempting to sell eight rhino horns, five tobacco pipes made of elephant ivory, and three pipes made from dugong tusks. The arrest took place on Aug. 23 during a string operation as the susp…