Well, Erasing Video is hardly covering your tracks there are so many ways in which a GM can logically track you...
Video is the most obvious option, and having a hacker edit it out is a good idea, but remember this is 2072.
First off all your PAN activally tracks your location in the more secure areas of seattle unless in hidden mode which i doubt there were unless you stated. this is also something your hacker can erase or edit.
you casting a spell can be tracked for ... i beleive it is Force hours, unless you spend complex action(S) to erase them, i cant remember the exsact formula it is to erase the magical residue but yeah... it can be tracked. and remember you cast 2 force 7's.
and with severe damage to two 30 story buildings there will be some sort of response team at the buildings shortly after the severe damage took place, and who ever owned the building would probably be a little but hurt .
and as a GM that sent a Runner Team against you he isnt going to let those slip... if he knows about them.
Naielo
At the time I cast the spells my aura was that of an awakened wolf so it will require *by my count using the books* 9 successes *got 4 successes on masking my aura* to notice the true aura attached to the spells. The two force 7's will be an issue but as long as I don't go casting more of the same spell type I will be fine. The aura imprint they find is just the shadow of my aura through that spell it doesn't give info on me. *Again according to the book* The big advantage is that it allows them to set up a pattern to magic use and use it to track down the person or to bust them in the act and use it as evidence.
The PANs are one of the issues but the identities they were attached to are easily tossed.
The other runner team after us was all part of the module he was running, I guess the guy we killed was supposed to be giving us jobs later on. Lesson learned, don't play a vindictive personality when you are suffering from food poisoning, it leaves you acting really short fused.
Since the buildings were in Manhattan it is going to be bad, but with evidence that the guy who destroyed the buildings was a member of the corp that *I think* owns them... Yeah it will be a black mark but also a reason to expand and improve on what was there.
Oh we do have to figure out why the video's of the people that did the "crime" has already been altered to look like different people. Just another mystery that will be solved once the game starts, it might be the other Johnson didn't want his involvement known or some corp is trying to spin it and pick up a new team. The only on that knows isn't talking yet heh,