How to delete a relation of a object in Parse?

I tried several ways, but none of them worked, with destroyAll:

var currentCheckin = user.get('currentCheckin');
if(currentCheckin){
  Parse.Object.destroyAll(currentCheckin.relation('events')).
  then(function(){
     console.log('Success');
  });
}

With unset:

currentCheckin.unset('events');
currentCheckin.save(null).then(function(){
  console.log('Success');
});

What is the right way to do it? There is no much information about it out there.

Thanks

Well in order to delete an object in parse you have to query it first. Once you find the object you can then delete it like so.

var currentUser = Parse.User.current().get("username");
var Follower = Parse.Object.extend("Follow")
var query = new Parse.Query(Follower);
query.equalTo("follower", currentUser);
query.equalTo("following", pic);
query.find({
  success: function(follower) {
   for (var i = 0; i < follower.length; i++) {
   follower[i].destroy({
     success: function(follower){
       console.log("success")
      }
    })
   }
  }
});