Police have renewed their appeal for information, one year after 42-year-old Wayne Stockdale was shot in the head in Bow.
A video posted online apparently shows military equipment, being used as part of Olympics security, left unguarded outside London flats.
Missile systems have been deployed in south-east London, in preparation for a training excercise ahead of the Olympics.
Ground based air defence is rolled out for nearly all Olympic games. Principle role: detect threat @londontonight
Any decision to deploy missiles or take action is a "political" decision taken on a "political level" @londontonight
Ward Cllr for Blackheath says residents are concerned abt security of site. He's told there would be 24/7 armed presence @londontonight
Rapier missiles, like those shown in the video below, are to be deployed around London during the Olympics.
Company video from Hertfordshire-based missile manufacturer MBDA.
Two of the missile systems to be deployed around London during the Olympics will be revealed today.
A huge security operation going on into next week will see high levels of military activity at Olympic sites around the UK.
The Ministry of Defence is considering six sites across London for the deployment of surface to air missle launchers during the Olympics.
The Lexington Building in Tower Hamlets and the Fred Wigg Tower in Waltham Forest have been identified as potential sites.
Also Blackheath Common and Oxleas Wood in South London, William Girling Reservoir in Enfield and Barn Hill in Epping Forest. Talks have already taken place with housing associations and residents. Organisers say it's to ensure a safe and secure Olympics.
The Army is set to station soldiers and surface-to-air missiles on top of a block of residential flats to ward off airborne terror threats during the Olympics. Residents in Bow have received a leaflet warning them a team of 10 soldiers and police will be stationed there for the whole of the Games.
Up to 150 people who were evacuated from their homes in east London after a gas leak have now returned.
Emergency services were called to Bruce Road in Bow at about 10:30 yesterday following reports of a ruptured gas main.
People living close to the pipeline were asked to leave their homes.
The pipe has now been repaired and residents have been allowed back.