Former Puerto Rico mayor caught on film in bribery case faces 5 years in prison

Ángel Pérez Otero was found guilty of conspiracy, bribery and extortion in March .

He had been accused of awarding contracts and expediting invoice payments in exchange for thousands of dollars in cash.

Attorneys for the former Guaynabo mayor say they plan to appeal.

Several former mayors have been sentenced in federal bribery cases in recent years .