Usually we follow the oil trail to alley way leading to a back gate where it was chopped up. They took the engine out of this one, so they lucked out.... Seriously, that is some amateur hour type work right their.
Closer look, maybe that car was used to traffic drugs from Mexico. Then it was dumped for others to pick through it. No other reason why they would cut up the structure like that... Also, unless that steering wheel came from the car they are putting the parts on, then that looks like it was in a major wreck already.