She isn’t scared. It’s just she had a bad time at the time it was happening and how police acted before. And for that she doesn’t even want to help them in this case at all now.
She literally had to struggle back then, while they had her phone in hand. And now suddenly after 4 years, they are calling back to back to close this case. I’m sure it’s for their convenience. And they never returned her phone so she doesn’t even want to bother now.