Pasco, WA- Prosecutors have asked for DNA samples from a man accused of murdering his ex-girlfriend.
Prosecutors believe DNA found at the crime scene will match that of Gregorio Luna Luna.
Police arrested Luna Luna last week for stabbing 21-year-old Griselda Ocampo Meza.
Court records show Meza had filed a protection order against Luna Luna.
The two reportedly had been arguing over their five-year-old son.
Today prosecutors read Luna Luna his rights as a non US citizen. Under international treaties, Luna Luna has a right to contact the Mexican Consulate to help him get legal counsel.