And he wasn't after their walkmans.
Come on, I have enough strength to hold The Rock down for a little bit if I catch him from behind. I will read up on the case file, but I find it odd that a guy kills a brunette, then returns and isn't able to keep control of two blondes.
Most sexual attackers have preferences. They like asian women, big chested women, women who look like mom, etc...
Chandra looked nothing like these other gals at all. If this guy killed Chandra, and liked it so much that he returned to the crime scene, he would have made sure the women didn't get away. He isn't a rocket scientist, I am sure, but he ain't Forrest Gump either.
Again, I would buy it if Chandra were third, not first. If the first two got away, he could have been frustrated, and increased his violence level with her, but Chandra was physically fit.
You also are quite aware I am sure, that Chandra left without her cell phone, looked up the park on mapquest, and that Condit lied about his alibi for that period.
I am just following the law of averages. To keep your theory, you have to have a stalker that is acting weird for a stalker, and Condit having a good reason for lying about his whereabouts during the time Chandra was in the park. Occam's razor applies.