User blog comment:TimeSoul/The Phantom Shadow?/@comment-4992622-20120406082014

My reasoning behind thinking it's Mr. Ping....

Exhibit A: Cam is susceptible to hypnosis, as seen in Dudes of Darkness, and this fact is also brought back in the second half of season one's finale. Added to Cam's spaced out look, I think he was hypnotized during the incriminating acts. We're also told the first time Cam is hypnotized at Lee's tenth birthday party. Due to the fact that we have yet to be introduced to any cannon characters that have known Lee that long, aside from maybe Tina, we can suppose that the only one's who know about Cam's spell would be Lee, Mrs Ping and Mr Ping.

Exhibit B: His slip up in The Tag Along, with the whole "Your mother hates me" thing. That leads me to believe they don't get along as well as it appears. Perhaps she doesn't like his work, or something. She's tough on Lee, while he's a lot more relaxed. I dunno, but something seems weird with that whole family dynamic. Perhaps setting up the prank and the series of events that occur afterwards are some way of getting Lee away from her for some reason(reasons that I can only speculate on, as I have yet to develop a full theory on that...)

Exhibit C: His work into the tunnels. That's just plain weird. What's even weirder is the fact that the whole thing is moved without a trace. Perhaps Barrage moved it. And perhaps those working down there have access to the same security equipment Barrage uses. That way, Mr. Ping would be able to keep tabs on Lee. Heck, they live in the same house. He could even plant a bug on Lee if he wanted.

I dunno...I'm just speculating. If you have come up with any evidence to strengthen or refute my claims, I'd love it if you shared :)