Christina Morris' (23) remains were found almost four years after she went missing

[Boston Babe 73]

The last man seen with Christina Morris before she disappeared lied to detectives, cleaned his car and had what was described as a bite mark on his arm the morning after her disappearance, according to a search warrant released by the Plano Police Department Tuesday.
Plano police obtained a search warrant to seize Enrique Arochi's car in connection with the investigation into the disappearance of Morris, 23, who was last seen Aug. 30 walking through a parking garage at the Shops at Legacy with Arochi.

In the search warrant affidavit, police detail several instances where investigators said "Arochi has made numerous false statements and omitted pertinent information" during the course of the investigation.
The search warrant states the lead detective "believes Arochi has intentionally made false statements which have hindered detectives in locating Morris."

Search Warrant: http://www.nbcdfw.com/news/local/PDF...281502151.html

I'm confused. It says he had a bite mark on his arm the morning after her disappearance. But the reports say that nobody raised the alarm until September 2nd when she didn't show up for work. She disappeared on August 30th.