MANILA, Philippines — Transport group Pagkakaisa ng mga Samahan ng Tsuper at Opereytor Nationwide (Piston) will hold a caravan on Wednesday for one of its leaders who died. A caravan for 78-year-old jeepney driver Elmer Cordero, known as “Tatay Elmer,” whose body will be brought to Claret Church in Diliman, Quezon City at 1 p.m.