NEW : Rash of killings is also reported in Acapulco . Juarez is one of Mexico 's deadliest cities and an epicenter of drug cartel violence . Sanchez is three of the deadliest cities in Acapulco . Authorities say four people were killed Sunday . This includes four police officers from three different agencies .
NEW : Rash of killings is also reported in Acapulco . Sanchez is three of the deadliest cities in Acapulco . Authorities say four people were killed Sunday . This includes four police officers from three different agencies .