In most countries, stealing a moto is not considered a capital offence. And yet here people are cheering because the police have executed the thieves without the benefit of any judicial process. There are many people, particularly from Europe where life is valued more highly, who don't believe in capital punishment for any crime. What if the police got it wrong, misunderstood what was happening and shot the people for nothing? A member of someone's family is dead for no reason. Members of DR1 frequently criticize the DR police for corruption, dishonesty and incomptenece yet are happy to entrust them to be judge, jury and executioner.
I know the Dominican judicial system is very far from perfect, but it is still slightly better than the law of the wild west.