Daphne Caruana Galizia was killed in a car bomb planted by hired assassins in her car. She was killed because of the work she was doing uncovering crime and corruption. The government says this was not an assassination. That alone is a reason to protest. There are many others.
The vigil is called by Repubblika, #occupyjustice and this website for 16 June, 2019 in front of the law courts in Republic Street, Valletta. At 19:30.