Anaheim police focused their investigation into the killing of a 21-year-old whose body was found in a trash bin on a corridor known for human trafficking and prostitution.
Jarrae Nikole Estepp, 21, was found dead on Friday at an Anaheim recycling plant.
Police were canvassing a neighborhood of weekly hotels and businesses along Beach Boulevard and Ball Road, searching for clues.
Detectives believe she was last seen near the area a few days before her body was found by workers at the Republic Services waste and recycling facility on Blue Gum Street. The body was found on top of a conveyer belt.
"We're looking for the last person who may have had contact with her prior to her death," said Lt. Tim Schmidt of the Anaheim Police Department.
Estepp had a prostitution conviction in Oklahoma in 2012, police said.
NBC4 obtained a video of Estepp, allegedly soliciting a customer that year. It is from an Oklahoma-based website, called johntv.com, that claims to help expose "Johns" who solicit prostitutes.
Police are investigating how Estepp got to Orange County and whether prostitution brought her to Southern California.
In February, NBC4 was given exclusive access to Orange County's Human Trafficking Task Force, which seeks to rescue girls from the sex trade.
Much of their work is done near the area Estepp was last seen.