Theexwife
In the past we would only know about crimes if they appeared in national newspapers, now we know more via the internet.
We also know of all the hatred because of social media, people used to keep their thoughts and opinions to themselves.
Yes, we know so much detail now about what's going on. I know people who don't listen to the news, just check out the headlines once a day - perhaps this is the way to go for the sake of our own wellbeing. There has always been violent crime. One of my dad's cousins was convicted of manslaughter following a fist fight, my dad used to talk of gangs from different villages meeting up for fights, and he was once threatened by men with knuckle dusters for dating the wrong girl - they lived in a rural area. A girl from my village was strangled by her boyfriend in the early seventies when she told him she was pregnant - her body was found in a local park. And so on, and so forth. Knives seem to be a major factor now, but a murder is still a murder.
As others have said, the trend of violent crime in general is not upwards. As for deaths, the ONS says that the rate of homicide in the population remains relatively low, at 12 homicides per 1 million people. Every single one is a huge tragedy for the family and friends of the victim, but the figures show, thankfully, that our society is relatively safe.