Transcript for 21-year-old man charged in killing of 5 women in Florida bank

We will move on to a deadly rampage in a Florida bank tonight. We have learned that all five victims for women. One of them, a mother of seven. What the gunman's former girlfriend has revealed. Tom llamas is in Sebring, Florida, tonight. Reporter: Tonight 21 year old zephan xaver formally charged in court today with five counts of premeditated homicide murder. Police say the alleged shooter walked into this suntrust bank with a bulletproof vest and a 9mm handgun. Forcing the four employees and lone customer to the ground, shooting them execution style. All five victims were women. Just moments before the shooting 76 year old Victor sparks tried entering the bank, but the doors had already been locked by the alleged gunman. I was so thankful. The fast response. I would say eight police cars were there. Reporter: Police eventually surrounding the bank, then ramming the entrance when xaver refused to surrender. At that point were you under the assumption the victims may still be alive? We'd hoped the victims were alive. Reporter: But it was too late. And now a young woman who says she's the shooter's ex-girlfriend says she warned people about his alleged desire to kill. Talking about guns, and wanting guns, and he wants to hurt people physically. Tonight police releasing the names of three of the victims. Marisol Lopez, a teller at the bank. Cynthia Watson, the lone customer. And Ana pinon Williams, who had just started working at the bank a few weeks ago, and a mother to 7 children. Loving came easy for her. Living without her will be hard. Tom llamass from Sebring, flortd. No motive. There is one person who did manage to escape? David, we just learned that incredible piece of information moments ago. Police tell us there was a bank ploy who was in the break room. When they heard the gunshots, they took off running, calling 911 along with the way. Investigators do not have a motive yet. But dhi have surveillance video and they will show it's a calculated mass shoot sbk not a bank robly. David? Thanks to you tonight. We will turn now to a desperate search for a

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