Performing Crud Operations Using LINQ to JSON

Hi all, I am able to display data from JSON files but I don't know how to update or delete objects in those files without writing to those files like I would if I were working with simple text files. JSON files are a bit more complex than simple text files because of all the curly and square brackets and writing an editor will definitely be time consuming.
I hear that JSON.net facilitates the use of LINQ to perform CRUD operations on JSON files. Can someone please show me how to update or delete records in JSON files using LINQ or point me to a good tutorial, thanks.