PERSON@1 was present at LOCATION@1 with the PERSON@2 brothers and PERSON@3 on NUMBER@1 October NUMBER@2 when they surprised a patrol of four police officers on their trail , with three of them shot dead .

PERSON@4 was at LOCATION@1 with the PERSON@2 brothers and PERSON@3 on NUMBER@1 October , NUMBER@2 , when they found four police officers on their trail , and shot three of them dead .
