Welcome to the tales of Inspector Piper. Chronicle 7: Vote for Vendetta

It is the night before the Union President election results are announced.

A dark storm approaches, and a party is held on campus to celebrate all those running for office.

Suddenly: a power-cut and the lights go out.

When they come back, the favourite for the presidency has been found dead.

Can you work out I) the murderer behind this evil act II) find the weapon and III) work out why they did it?