@Nicodemus (from the autobiography): Yeah, I read that the police were called and showed up at his apartment. And they said he was so polite and had complied with everything so easily that they closed the complaint. Now we know why -- if he had raised their suspicions further, they would have searched his place and found everything, ruining his plans forever. So he snookered them by playing the courteous, meek, self-effacing boy, and they left.
He apparently was very good at playing the game.
Sadly, he wasn't physically unattractive, and his vocabulary suggests he had a decent amount of intelligence. It makes you wonder what people sensed with him that dissuaded them from being interested, or whether he ever put out signs that he was interested and open.
The video opening this thread seems to me to be part of his own personal brainwashing/pre-acting. it isn't uncommon for killers and some other types of criminals to enact a crime in their mind numerous times until they feel comfortable with it. I get the sense that a lot of his voicing these ideas out loud was part of him getting himself into the proper mindset to actually carry out this crime spree. When he was finally comfortable, he went forward with it.
The nonsensicality of it was jarring. he's proving he's an alpha male by killing females? And much of the harm he did doesn't sound very alpha-ish to me, with any risk to himself; shooting unarmed people and hitting people with his car is about as cowardly as you can get. He also referred to himself as the "ultimate gentleman," but he sounds anything but. He also referred to "other men," and all I could think was that "other" is a lie -- he was just a boy and never really learned what it was to be a man. All i saw was a lonely, bitter, angry boy.
A sad end to a sad life, and even sadder because of all the people that he took with him.