Yeah... I got it. My post occurred before your explanation.
She was inside, he was outside. He shot people sitting in their cars because they brought people to the PP clinic. (say that to yourself and see if it sounds as ridiculous as it does to me).
You also said(or implied) that the reason he shot people out in the parking lot was because the PP staff went and hid in a safe room. Which counters the fact that he was outside and they weren’t (at least the lady you mentioned wasn’t) in the safe room when he shot them.
Can you explain that ?
I did not say or imply that the reason he shot people in the parking lot was because staff hid.