How to dynamically fill a 'label' field in swift from a model?

here is my code on GitHub that has screen shots of what I have now and what I am trying to accomplish.

I followed this YouTube video: https://www.youtube.com/watch?v=0H78ktM97yU to come up with what I have now.

Using data from this api, https://jsonplaceholder.typicode.com/todos I have built a table via importing the data from a model.swift file and the built in JSON parser. Now I am trying to let user view more information about the title they selected. This api has data that looks like this:

[
  {
    "userId": 1,
    "id": 1,
    "title": "delectus aut autem",
    "completed": false
  },
  {
    "userId": 1,
    "id": 2,
    "title": "quis ut nam facilis et officia qui",
    "completed": false
  },

...cont... 

]

Right now I think the way to get to where I want to be is by adding in a 'cocoatouch class' view controller, and adding in code to this file to alter the label field. However, I am not sure what kinda code to add into this cocoatouch class view controller titled 'title_details_ViewController.swift'. I know that it has to connect to my file titled 'Model' somehow...

Thanks in advanced <3