People like to feel that there is justice and that bad guys get caught. Serial killers and the source of info (mostly police departments) makes for low hanging fruit. To get less biased info would take more work. It is possibly different outside the US.

VLC (Video LAN Client) probably has a plugin for this. It was designed to stream video across networks.

Snikket.org Open Source, real End-to-end encryption (OMEMO), and you can use other clients if you don’t like theirs. You can also self-host.