Conclusion. The Season 31 premiere investigates the world of murder-for-hire on the dark web; and exposes an international criminal organization in a hunt for a self-described murder mastermind simply named Yura. During the six-month investigation, which covered 30,000 miles, reporter Peter Van Sant and "48 Hours" uncovered solid information that led law enforcement to arrest people in four separate cases who were allegedly willing to pay to have someone killed.