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I got in the water in the very early morning before the sun had risen, and the water was pitch black.

I started swimming, and I felt the water hollowing out around me and felt like something

really big was swimming below. I'm Phoebe Judge and this is love. A show about the

surprising things that love can make us do. More than 100 episodes, available now on This Is Love.

On June 3, 1973, a gang leader named Yip You Tak was gunned down at a very busy intersection in Chinatown.

Julie Haugh is a journalist and a filmmaker.

This murder was actually witnessed by probably dozens and dozens of people.

When police arrived, they found a 38-caliber revolver, but they couldn't find any witnesses.

Julie Haugh says the locals in San Francisco's Chinatown

were too afraid of gang retaliation to speak with the police.

There were more than a dozen unsolved murders in Chinatown attributed to gang warfare.

It started to become actually quite a serious problem for the city of San Francisco

because tourism in Chinatown was really like a main lifeblood of San Francisco's revenue.

The police interviewed the only people willing to talk.

The police were only able to get these white tourists who saw the killer for

mere seconds from quite a distance away to come down to the station and look through mugbooks.

...