This not the first time that British identity was stolen. A group calling themselves Nakam (avenge in hebrew) carried out killings of Germen soldiers at end of the WW2. The killings took place after the soldiers surrenderd. The Nakam gang wore British army uniforms whilst the executions took place.
15 police officers killed in Colombia helicopter crash (Reuters)
from the article: Germany, France also request Israeli answers on Dubai fake passports