danila kislitsyn told police it was his duty to eliminate tuberculosis .
the 31-year-old would travel around vladivostok as they posed a threat to people and needed to be wiped out .
the 31-year-old would travel around the south-eastern russian city using poisoned sausages and setting traps to kill strays and occasionally even people 's pets .
danila kislitsyn had to be sent for psychiatric tests ahead of the trial but was found fit to stand .