"Willis was soon running around Chinatown with a large violent street gang called Ping On Gang, which was a farm team for the 14kTriad. He would soon become an enforcer for the gang during the 80's and the 90's, while they were expanding. He was known as the White Dragon and The White Ghost because of his ability to commit violence and move on."
"The Ping On Gang was headed by Dai Lo or "Big Brother." Stephan Tse, also known as "Sky Dragon" was a member of the 14k Triad in Hong Kong who came to America to spread the 14k Triads reign. He controlled all Chinatown crime until the 1990's when young Vietnamese and other Triads started to move in on his action.It all came to a head when 6 men were gunned down by three young gangsters in a Tyler Street Gambling den on January 11, 1991. One man lived and one escaped the massacre, but it was the worst the Boston Police had ever seen. "
http://breakshotblog.blogspot.com/2014/06/the-white-dragon.html
"At his 1992 trial, prosecutors presented a witness, Jeffrey Tom, a member of the Green Dragons, who said that he was in the pool hall and that he heard Su tell two White Dragon gang members, “When I leave, shoot them.”"
https://www.law.umich.edu/special/exoneration/Pages/casedetail.aspx?caseid=3669
"White Dragon Gang"
"I am kind of surprised nobody mentioned about them. I know they are active in the SGV area, since I knew someone who used to kick it with them. However, I don't hear much noise about them. Anybody know they history behind this gang. A friend toold me they started somewhere around the 90's. Just want to clarify."
http://www.streetgangs.com/billboard/viewtopic.php?t=42198
Look in China, around the Triads.
May also be operating in America.
"White" is a misnomer, a lot of bad intel agencies, law-enforcement types think it relates to white supremacism. It doesn't. The real tip-off is the word "dragon", famously associated with Chinese culture.
Start from there, see what you can dig up.