Oxide & Neutrino are a DJ and MC duo from London, comprising Alex Rivers (b. 1982 in Isleworth, London) and Mark Oseitutu (b. Brixton, London). Their first single Bound 4 Da Reload went to number 1 in the UK singles charts in May 2000. It is famously known for sampling the theme song to the BBC's hospital drama series, Casualty. Oxide & Neutrino are members of the group So Solid Crew Their song "Shoot To Kill" was featured in the soundtrack to the movie "Ali G Indahouse"