After the first murder, you need to look for ice, cold, a cigarette, maybe some alcohol... or a smile. :P
For the second one, you need to find something that can make a small hole.
IMHO.
P.S. And did they want to kill Vikha again, or was it just a test, or something like that? Maybe they want to kill him because of his nickname? Since he's "Major," he must have a good role (position).
P.P.S. By the way, maybe Vikha was recruited by hitting him on the head with a book?