Prosecutors say 48-year-old Mayra Gavilanez-Alectus was arrested this week by the FBI, U.S. Marshals and HPD.
Now, she's in the Harris County Jail awaiting extradition back to New Jersey.
On May 17, prosecutors say Gavilanez-Alectus attacked and killed her 32-year-old wife with the cylinder of a wine chiller.
Gavilanez-Alectus apparently took a bus to Houston after the murder.