Law journals

Pepito was part of a crime. He wants to know the difference between principal, accomplice, accessory before the fact and accessory after the fact. Define and explain the difference between them.

Pepito works in a factory in Hialeah that dumps the chemicals used to dye the Cuban flag t-shirts into the adjacent lake. On one sunny Hialeah day, Pepito decides to swim in the lake after work. His skin turns purple and he develops breathing issues after the swim. What can he do? Where can he turn to? What possible legal avenue can he take?