Security Official Tapped As Hong Kong's No. 2

The video discusses the appointment of John Lee, a former police official, as Security Secretary. His promotion is seen as a sign of Beijing's increasing control over Hong Kong, aiming to limit free speech and political dissent. Shortly after his appointment, Lee led efforts to close down a major pro-democracy newspaper in Hong Kong.

What significant action did John Lee take shortly after his appointment?

What was the name of Hong Kong's biggest Pro Democracy newspaper mentioned?