One day in the summer of 2017, Vince Muscat dropped his friend Alfred Degiorgio at the Busy Bee, a harbor-front cafe near Malta's capital renowned for its pastries stuffed with ricotta cheese. Degiorgio didn't stay long.

A few minutes later, he jumped back into the car to report to Muscat that they had a contract: To kill the island's top journalist, Daphne Caruana Galizia.

Daphne was blown up by a car bomb on Oct. 16, 2017. The murder shocked Europe and revealed the island's violent, criminal underbelly. For years Daphne had run a popular blog famous for its punchy political opinions and allegations of corruption. It had made her many enemies.