Conversation so far:
When was Euronymous murdered?
Euronymous was murdered on the night of 10 August 1993.
Where was Euronymous when he was murdered?
Euronymous was at his apartment in Oslo when he was murdered.
Who murdered Euronymous?
On the night of 10 August 1993, Vikernes stabbed Euronymous to death at his apartment in Oslo.

Question: Were the murderer caught?
Self-contained rewrite: Were Euronymous' murderers caught?