O'Hara who had been receiving chemotherapy due to cancer, was rushed to the hospital on June 20. On Tuesday, his sister-in-law, Peewee O'Hara, said Mario died at San Juan de Dios hospital due to complications from acute leukemia.O'Hara is known for his sense of realism often with dark but realistic social messages. A native of Zamboanga, he collaborated frequently with Lino Brocka during the 1970s.
