(Brought over, went to make coffee, finish post and thread was closed!)
Her initials are CT, it can get very confusing. The use of a lot of initials always reminds me of the Robin Williams skit in Good Morning Vietnam.
Some of the rudiments you mention in relation to perps we've recently just witnessed in an ongoing case. Guy named Sievers hires best friend from HS days to murder his wife. Best friend brings along the village idiot self-named Jimmy the Hammer, who battered Ms Sievers to death ... with a hammer. On the flip side, female perp Jodi Arias did in fact premeditate and disguise herself (kinda) though her weapons of choice were a gun and knife, so not a blunt object. Good to read your thoughts.
I've never thought it was RB, though I get why others do. IMO he's too old and and is physically very different from the perp. He has a high-up, large paunch, which cause his arms to sit at a slight angle from his body. The perp appears to have a slimmer build,and is more agile and 'youthful' in their walk.
According to his ex-wife, Brandon's mother: "He was in California, and they've proven that. He and his wife had to fly back the next day." I believe that would have been established pretty early on.
http://www.people.com/article/texas-fitness-instructor-died-husband-speaks