SAN ANTONIO -

San Antonio police made a second arrest in the July 4 murder of a pregnant woman.

Despite what 19-year-old Breanna Marie Ancira said as she was walked out of police headquarters in handcuffs on Thursday afternoon, police say she was involved in the murder.

"I had nothing to do with it," she said.

Police investigators believe she drove the shooter, 25-year-old Deven Donell, to the crime scene.

Donell was arrested last week.

"At this point, it doesn't appear there are any more suspects," said San Antonio police spokesman Javier Salazar. "This suspect today, although she's not believed to be a shooter, she was actively involved in the murder itself."

The victim, Baby Girl Harrison, was shot through the door of an apartment in the 3100 block of Versailles Road.

She was pregnant, so Ancira and Donell are charged with capital murder.