The parents of three brothers — 18-year-old Jesus Ramos, 22-year-old Johny Ramos and 28-year-old Junior Melendez — faced the danger head-on, desperate to find their sons after the fireworks facility they worked at exploded.

The explosion, which left seven people missing, started a wildfire and forced some cities and counties to cancel or postpone Fourth of July fireworks shows.

Human remains have been found at the warehouse filled with fireworks that exploded in Northern California this week, officials said.