Only System Admin's can delete a user's account. In order to delete a user's account, first click 'Users' from the Management panel on your homepage.
Navigate to the user you want to delete and choose 'Edit User' from the 'Actions' menu.
On the pop-up that appears, click 'Delete.'
If you want to delete multiple users at once, select the users you'd like to delete, then use the 'Bulk Actions' button to bulk delete the selected users.
Once a user's account is deleted, all of their Videos & Files are deleted as well. Please make sure you have a plan in place to download or duplicate that user's files if you will need to access them in the future.