MANILA, Philippines — At least five student players of the Ateneo de Manila University (ADMU) including victim Divine Adili participated in the tragic sea drills despite admitting that they could not swim, a key information that strengthened the recommendation of the Philippine National Police - Criminal Investigation and Detection Group’s (PNP-CIDG) for filing of charges for violation of anti-hazing law, Interior Secretary Jonvic Remulla said on Friday.