It's a complex story with many facets, but it that can be summarized like this: At 2 p.m., Harold Dahl was on a fishing boat salvaging logs with his young son when he said he saw six flying discs appear above him over the water.
One of the donut-shaped discs appeared to be in trouble and dropped what appeared to be tons of a hot molten substance in the water and the beach. As the story goes, the heat and debris killed his dog and burned his son.
Days later he was visited by a mysterious "man in black," who told him not to talk about what he saw. He was then visited by two Air Force investigators who were on a classified mission to see him and gather evidence. On the investigators' return to a California airbase, the B-25 they were piloting crashed, killing both of them and destroying whatever evidence they were carrying. The FBI closed the case without any resolution.
It's known as the Maury Island Incident.
Source: dark-sky-misteries.blogspot.com
