Police say Erlynda Lucero is suspected in the fatal shooting of Daniel Guardado on June 24.

They say Guardado had been following Lucero’s car after she pulled a gun on him during a failed drug exchange attempt at a hotel parking lot. Police believe Lucero fired shots from the passenger seat of a car, striking Guardado, who was in a different car.

Lucero was arrested Friday afternoon. She faces one count of murder. It wasn’t immediately clear if Lucero has an attorney who can comment on her behalf.