Manchester Arena, Twenty-three people died, including the attacker, and 1,017 were injured, some of them children
London Bridge 2017 Eight people were killed and 48 were injured,.
July 7th bombings 52 UK residents of 18 different nationalities were killed and more than 700 were injured in the attacks, making it the UK's deadliest terrorist incident since the 1988 Lockerbie bombing.(243 passengers and 16 crew)
Asad Shah murdered by Tanveer Ahmed in Glasgow
The majority of deaths by shooting are from illegally held weapons
In the last few years there's been less than 50 killed by legally held weapons as far as I'm aware.