Will Peru's new amnesty law put justice out of reach?

First came the rattle of a loud explosion. Then, the patter of gunfire reached 14-year-old Francisco Ochoa's ears.

Ochoa and his father had been up since the crack of dawn on August 14, 1985, preparing to sow seeds in the corn fields outside Accomarca, a small village nestled in the rugged Andean mountains of south-central Peru.

But the unexpected sounds coming from their hometown forced them to rush back.

It was late morning by the time they reached the houses, but the village was eerily quiet.