Once on the train (according to what the channel said was a leaked police statement, aired Tuesday night) a police officer pinned de Menezes down when another officer shot him.
More than two officers were present when this incident occurred
( z1 present :ARG1 ( z2 officer :quant ( z3 more-than :op 2 ) ) :time ( z4 incident :mod ( z5 this ) ) )