if you think the dogs actually belong to someone you should seriously confront them especially if these dogs are some kids pet.

if they are wild dogs which are basically homeless you should really call the dog catcher and let them handle the problem. If they seem sick I would consiser shooting them but there are better solutions. Personally I have 2 dogs which I consider my children.... I could never shoot anyone's pet and if someone ever shot my dog there would be some hell to pay if I found out and that is after my wife gets done with you