How to loop through array and check for checkbox in jquery

On my Website, I display div with each person's info and a checkbox. I do this by getting data from mongodb and loop through the array with the following code. However, I am trying to see which checkbox has been checked so that I can delete those ones in the database. I have hard time figuring out how to actually check which checkbox has been marked. Can anyone please give me some suggestions?

everything = '<ul>'
everything += '<div class="contact">' +
  '<div>' +
  '<span class="contactTitle">' +
  '<img src="' + imgurl + '"/>' +
  '</span>' +
  '<span class="contactTitle">' +
  '<h4>' +
  com.Name + '</h4>' +
  '</span>' +
  '</div>' + com.Phone + '<br>' +
  '<a href="mailto:' + com.Email + '">' + com.Email + '</a><br>' +
  com.Address + '<br>' +
  '<input type="checkbox">' +
  '</div>'