Young adult mystery book about a haunted warehouse that had videos to go along with each chapter.

I read a book (a series I believe) in middle school (so around 2009) that was written as if it was a young man’s journal. It was about a potentially haunted warehouse where a man had injured his leg when the warehouse was up and running and his ghost now roams around and you can hear his boot dragging across the floor.

The book also has a side character who is a videographer. At the end of every chapter there is a website that you can go to and enter a passcode to watch the video that the side character recording in relation to their investigation.

The cover of the book looks similar to a composition notebook.