A shopper inside the Coach store at Otay Ranch Shopping Centre turned to employees, whipped out a gun and ordered them into a backroom.
Now, Chula Vista police say they've arrested the woman they believe forced employees to open the store safe and grabbed a number of Coach purses on her way out the door.
Soyla Gobert, 30, was already in custody accused of robbing a La Jolla nail salon.
In that robbery on Prospect Street, one of the victims chased after the suspect, tackled her and held her until police arrived.
Chula Vista police said the suspect in both crimes wore the same clothing and wig.
Gobert is being held on $175,000 bail and is expected to be arraigned for the Coach store robbery charges on Monday.