manila philippines anti-graft body file criminal charge former president benigno aquino wednesday mishandle botch anti-militant raid result death 44 police commandos 2015. police officer deaths hand overwhelm number rebel gunmen contribute stall peace efforts muslim separatists southern philippines big crisis aquino 2010-2016 presidency office ombudsman say charge aquino usurpation authority well graft corruption follow preliminary investigations agency say former leader allow suspend police chief involve plan execution january 2015 incident mamasapano maguindano province keep interior minister police officer charge loop aquino representative respond immediately request comment police special action force commandos kill two al qaeda-linked militants ambush outnumber militants raid incident cause national outrage aquino approval trust rat fell record low bill put congress government separatist moro islamic liberation front grant self-rule predominantly muslim region mindanao island stall many process blame impact mamasapano incident bill since rework expect put congress soon president rodrigo duterte determine see pass mean develop country impoverish region arrest spread radical sentiment influence islamic state group philippine ombudsman file criminal case ex-president aquino