My guess is that if he "inappropriately touched" this girl you'd be calling for his execution. Figuring that he has nothing to lose, he probably killed her to keep her from testifying.
Nice of you to stand up for him. (/sarcasm)
I don't think he just killed her -- looks to be pretty gruesome from the sound of our DA's voice and his comments. I know Tim pretty well and he was shook up. This girl was in the apartment for two days according to reports and the guy was gone. According to the Oklahoman he was pulled over, got shook up, and they took him in for questioning.
Not to mention they are still looking for the man and Tahoe that her girlfriends said she got in the vehicle with at the library according to The Oklahoman this morning.
http://www.newsok.com/article/1816548/?template=home/main
Let us presume that the suspect is actually the perpetrator.
With continual advances in forensics, this was a stupid move on his part unless he completely dismembered the body in a remote location, destroyed all tools and items used before, during, and after the commission of his crimes, and disposed of the remains in such a way that they would not be found. As it is, a few drops her blood on any of his clothes, a few strands of her hair at his apartment, a broken fingernail in his car, any of the above would place her in his company - the company of a person she did not have a connection with and who typically did not have access to her.
This poor girl doesn't need to be alive to tell the world what happened to her; the evidence left on her body and at the crime scene will do that for her.
Further, he compounded his own sentence by murdering her.
SO YEAH, FRY THE BASTARD.
Did you read the article? He had bbq skewers - meat tenderizer - there was a detailed plan to rape her (not inappropriately touch her that's something you recover from) - kill her - rape her corpse, cut her head from her body - and eat her - he didn't kill her for anything other than his base desires.