Sergeant Diokno was part of the military operation led by Lieutenant Colonel Noel S. Buan that neutralized Abu Sayyaf sub-leader Hamsiraji Marusi Sali on 8 April 2004 . Buan , commanding the 1st Scout Ranger Battalion in Basilan , Philippines , and his men figured in a firefight with Sali and six others including Sali 's younger brother Sahir , also called Yashier Sali . Hamsiraji Sali was implicated in the kidnapping of an American Jeffrey Schilling , the 2001 Dos Palmas kidnappings and had a $ 1M bounty on his head . All six Abu Sayyaf members were killed . Buan 's troops suffered one killed and four wounded , including Buan himself
Dos Palmas kidnappings
Dos Palmas kidnappings
Leopoldo Diokno