For 10 points, name this 2001 event in which the drunken Crown Prince Dipendra gunned down ten of his relatives in Kathmandu.
One person present at this event reported to a journalist at the New Paper that it was caused by a scuttled arms deal with a German riflemaker, which cost over a million dollars, relying on the testimony of survivors like Ketaki Chester. In the wake of this event, a ritual known as "katto" which involves eating the bone from a human body, was performed to cleanse negative karma. The most significant person killed at this event had issued a declaration known as the "Zone of Peace" proposal at his coronation, and was the grandson of Tribhuvan. The majority of this event's victims died in a billiard room, and despite conspiracy theories otherwise, its perpetrator was likely taking revenge for being refused permission to marry Devyani Rana. In this event's wake, Gyanendra Shah was appointed regent. For 10 points, name this 2001 event in which the drunken Crown Prince Dipendra gunned down ten of his relatives in Kathmandu.
One person present at this event reported to a journalist at the New Paper that it was caused by a scuttled arms deal with a German riflemaker, which cost over a million dollars, relying on the testimony of survivors like Ketaki Chester.
Nepalese Royal Massacre [or Nepalese Palace Massacre; accept equivalents that indicate the killing of the “Nepalese royal family” or the “killing of King Birendra by Dipendra”, prompt on just “killing” in Nepal]