clerk to call 911. fearing the tsarnaev brothers will follow he hides in a storeroom. the clerk gets police on the line and hands ma nrve g the phone. the brothers hijacked the black suv. mang testified that one pointed a gun at him and asked do you know the boston marathon explosion? i did it and i just killed a policeman in came bridge. he made small talk asking him where he was from. mang replied i m chinese. the response? i m muslim. muslims hate americans. just before midnight they stopped at this shell station to