Question: What activity, restricted or banned in many countries, was the business of the murder victim of the "Pink Skirt Murder"?
Sentence (from "Murder of Adam Anhang"): Adam Anhang Uster (March 8, 1973 – September 23, 2005) was a businessman and founder of an Online gambling enterprise; he was murdered at the intersection of Calle San Justo and Calle Luna in Old San Juan, Puerto Rico on September 2005.
Relevant evidence: Yes