Altadena cat found tortoises shell / brown

Bibi Ma On FB I've been trying to find out if anyone has reported this cat missing, I haven't been able to find any posts or reports. She was seen with Sassy, Sassy was recovered yesterday but she isn't from the same owner. She looks like a short haired torbie? I think she is around west terrace in altadena.

Location: Los Angeles, California