What did Montoya do for a living? Blea we know was a landscaper and would have been proficient with a shovel. I heard or read somewhere recently that the tree tag was in one of the graves 8 ft. in depth. I don't know how accurate that information is but if it was deep like that it was likely covered at the same time the victim was. I'm not even sure it's possible to dig a 8 ft hole without a ladder to climb back out or a set of long handled post hole diggers and it would take quite a bit of effort. I'm wondering if some dirt was pushed over the graves when they were leveling off of the subdivision and that explains the depth. Blea looks like a really good possibility to me.