A man, identified as David Alfonso Barrera Nunes, faces federal charges after a boat carrying migrants from Mexico to the U.S. capsized near San Diego, killing four passengers.

He is accused of illegally bringing people into the country for financial gain, which resulted in death, and could face life in prison or the death penalty if convicted.

The boat, with nine people onboard, encountered engine problems, and the captain allegedly refused to turn back, causing it to capsize in rough waters.

Some survivors reported the captain’s refusal to help, and one was severely injured during the incident, CBS News has reported.

This tragic event highlights the dangers of migrant boats, which have capsized multiple times in the area, risking many lives.