Baja California's Attorney General says four Chula Vista residents killed in Tijuana last Saturday were not tourists looking for a good time south of the border. The Attorney General strongly suspects the group had drug ties.
Baja California Attorney General Rommel Moreno says a relative of Briana Hernandez - she's one of two women killed - turned over a letter from a woman serving time on drug charges in Southern California.
Moreno says the letter threatened Hernandez and the others that they'd come to an end with cocaine up their noses.
The four bodies were found in blankets inside a van in a residential area in eastern Tijuana.
Authorities say Hernandez tested positive for cocaine.
Moreno says he can say categorically the four were not innocent victims.
"The fact that a young woman uses coke and has ties to a woman in jail on drug charges rules out that she's the kind of person who's simply a university student." (translated from Spanish)
Moreno says the four crossed the border often and were comfortable on both sides.
He says he's working with US authorities in the ongoing investigation.