>> but that optimism was lost on the marcell family. they were still living in constant fear brittani's attacker would one day return, possibly for them. >> it was a scary thought because we didn't know if we were being followed still. and we're all scared. >> and that's when, in 2012, brittani's mom placed an uncomfortable call to sgt. thomson. >> i finally said, "you know what, i think we need new eyes on the case. " >> and so we had to have some hard discussions about what are the next steps? how can we move this case forward? >> sgt. thomson decided the best way to accomplish that was to re-assign the case to veteran homicide detective jodi gonterman. >> so, i read through the case. i briefed with detective morales. i spoke with the family. brittani didn't remember what happened at all. >> describe her for us. your first impression, what you thought of her? >> she's a go-getter. she's stubborn. she doesn't give up. she's just fascinating. she's cute, vivacious. she's a mom. she has kids. >> when she got, like, her