Is Tim McVay (the boyfriend) the lead suspect in the Carrie Olson disappearance and murder?

Hang tight with this one, because it gets confusing. Carrie Olson lived in Iowa and went missing in late December of 2013. Here's the basic breakdown:

Carrie Olson, 29, was last seen around 4 p.m. on Saturday, December 28th at the 7-Eleven on 38th Street and 18th Avenue in Rock Island, according to her father Dave Olson. He says a surveillance camera rec…