21st year remembrance of London bombing

The 7 July 2005 London bombings, commonly known as 7/7, were a series of four coordinated suicide terrorist attacks on London's public transport system during the morning rush hour on Thursday, 7 July 2005. The attacks were carried out by four Islamist extremists inspired by al-Qaeda's ideology.

What happened?
8:50 a.m. – Three bombs exploded almost simultaneously on three London Underground trains:
Near Aldgate/Liverpool Street
At Edgware Road
Between King's Cross St Pancras and Russell Square
9:47 a.m. – A fourth bomb exploded on a double-decker bus in Tavistock Square after transport disruptions diverted its route.

Casualties
52 victims were killed, in addition to the 4 bombers.
Around 784 people were injured, many with life-changing injuries. The victims came from 18 different nationalities.

The attackers The four suicide bombers were:
Mohammad Sidique Khan
Shehzad Tanweer
Germaine Lindsay
Hasib Hussain
They all died in the attacks they carried out.