Movie "Sicario": why dead bodies in walls of house?

I haven’t seen the film, but, where would you hide a number of dead bodies you killed with the minimum of effort and with reasonable concealability? (This question occupies an unreasonable amount of time in my brain) In The Wire, the Baltimore drug dealers just killed people in deserted homes and nailed the doors up. So, depending on circumstances it might have been the best option in a matrix of safety and ease.
oooooooh Wire sniped!