AW item#12 describes the 13:24 on 11/22 sighting as "an individual matching Frazee's description" at KB's door. The AW used stronger language identifying PF in AW item#11. "Frazee was seen on surveillance."
JMO the 13:24 video is likely grainy, may or may not be PF. JMO PF was running errands (Walmart and the maybe bank) to establish he was not at KB's during ~13:00 to 15:36.
He eventually left WP to the ranchette, dropped the baby and ate quickly, then went back to KB's where he was seen at 15:36.
From ~13:00 to 15:30 gives a 3rd conspirator time to commit the physical murder, clean himself up leaving unknown male DNA in the sink, and escape. PF had about an hour there from 15:36 before both KB and PF phones start moving west. He might have killed her in that hour 15:36 to ~16:30, and perhaps began in the upstairs bedroom where KB might have been napping. Or PF's role was only to collect the body, murder weapon, cell phone and other personal items for removal. JMO MOO IMO