She Murdered Her?

Seeing Regina in a pool of her blood and realizing the severity of the situation since she obviously couldn't call for an ambulance, she quickly took Regina's phone and sent herself more money before picking up her bag and hastily running out of the house.

As she ran outside, she ran into Tae-oh and four other detectives who were coming to get both her and Regina, and immediately she turned to run away.

"I wouldn't do that if I were you unless you want a hole in those legs," Tae-oh advised, and Charlotte stopped as she gradually turned around.

The moment Tae-oh had finished his business and had seen the missed calls from Tan, he had returned the ring, but when Tan didn't respond, he had called his wife instead, and she had told him what was going on.