After Senator Benigno Aquino Jr. was killed in 1983, Pepito, called Peng by family and friends, became involved with the Concerned Citizens of Pampanga.

Shortly after the elections had been held, Castro, Deheran and Cabrera were abducted from their little hut by a team of militia led by a soldier. They were brought to a military detachment where they were interrogated, beaten and stabbed repeatedly.

Claro Cabrera, Lito as everyone knew him, lived all his life in the crowded community of Sapang Bato in Angeles City, on the edges of the huge American military base at Clark Air Base.