Google Calendar Event Deleter - Remove all events on your calendar that were created by a certain id

code.gs

function run() {
  findAndNuke("blah@gmail.com");
}

/**
 * This simple script gets all of your events on your calendar and deletes any that were created by "id".
 * Useful for rogue events created by email addresses that don't exist anymore.
 * 
 * @param {string} id (email address) of the creator of the events you want to get rid of
 */
function findAndNuke(id) {
  
  if (!id || typeof id != "string" || !(validateEmail(id))) {
    throw "Please call this function with a valid Google Calendar ID";
  }
  
  var beginningOfTime = new Date(1970,0,1);
  var aLongTimeFromNow = new Date(2100,0,1);
  
  var events = CalendarApp.getDefaultCalendar().getEvents(beginningOfTime, aLongTimeFromNow);
  
  Logger.log(events.length + " total events found. Searching for ones owned by " + id);
  
  // go through each event
  var eventsOwnedByPerson = [];
  for (var i in events) {
    
    // get it's creator(s)
    var creators = events[i].getCreators();
    
    //go through the creator(s) of this one event
    for (var j in creators) {
      
      // if the creator of the event is the email that we're looking for
      if (id == creators[j]) {
        
        Logger.log("Found event named \"" + events[i].getTitle() + "\", created by " + id + ". Deleting...");
        
        events[i].deleteEvent();
        
      }
      
    }
    
  }
  
}

// https://stackoverflow.com/a/46181/2700296
function validateEmail(email) {
    var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(email);
}