Quite a good episode but nothing spectacular. They never did really explain outright how the wax got in her hair. It's a bit of a leap from the wax from his surfboard to it being on whatsername's hands when she killed her.
Why on Earth did Gibbs yell to Redding when they were that far away? It was just a way to lead into the McGee-running-into-the-car-wash scene.
The final scene of Tony finding Kate's photo was very well done – the green light was a particularly nice touch, Tony looks either like a psycho or an alien.
Lochlyn Monroe – I've always liked him and he still turns up in the strangest places. I still remember watching him in a Canadian teenager series when I was at school.