nairobi heist reminiscent hollywood movie kenyan robbers spend months tunnel bowels bank locate opposite police station steal equivalent half million dollars police say tuesday police say arrest two men one woman robbery recover 50 million kenyan shill report miss staff branch kenya commercial bank kcb monday show work recover steal money say simba willy sub-county police commander town thika northeast nairobi heist take place suspect robbers hire one shop near bank dig tunnel willy tell reuters robbers able remove earth months-long excavations without arouse suspicion conceal box daily nation newspaper quote local traders say traders describe two young men rent store hardworking introvert kcb region big bank assets confirm break-in twitter kenyans competition title ingenious robbery last month brazilian police foil plot rob sao paulo bank discover 500-metre underground tunnel kitted light ventilation systems movie-style heist kenya robbers tunnel bank opposite police station