Netherlands rattled by a string of drug mafia murders

A string of mafia-style murders in the Netherlands has led to questions about whether drug gangs are threatening the rule of law in the country. The high-profile killings include that of investigative journalist Peter DeVries. DW correspondent Jack Parrock has been exploring how attempts to shed light on criminal forces behind the country's liberal trade in drugs are coming under pressure from mafia intimidation. Here's his report from the Hague.