were all the plants together? if they were spread out and you took care to keep the paths from showing it would have to be an inside job, if there were evident paths linking them or they were all pretty close to each other it could easily have been a random guy stumbling across.
Nothing against women but unless she was built like a lumberjack she would have trouble moving more than one 6 foot plant at a time. Hell, i have to do it one at a time, and if it is more than a few block into the woods it could take hours to move an entire 5 gallon bucket or root ball, taking care not to damage the plant. As a guy that has had MANY plants stolen from him over the years...unless you made it obvious enough that a guy could find them all in a few hours, chances are it was an inside job. On top of that i SERIOUSLY doubt anyone had remorseful feelings about stealing all your plants...more and likely they couldn't find those two or they just didn't have time left to get them so they went for the biggest ones first. when more than one person colaborate to steal that much pot there isn't room for a conscience... you have a lead, and a good one, i would have people keep there eyes open, legally the best thing you could do was get intell and try and steal them back... or put nails under the treads of there tires so when they back out of their house they pop all four tires...lol that or drain there oil into a pan and screw the nut back on so they fuse their engines before they find out...lol ripping sucks, best bet is to to live and learn NEVER EVER TELL ANYONE! i have taken shit from friends, but in the end the realize they will never find out from you and accept it. i have even had other friends pretend they knew so more distant relations would offer them this and that to tell them where i grow...NEVER TELL!!!