NEW: The Houston Police Department says they've identified one of their officers, an 18 year veteran of the department, as having penetrated the Capitol last Wednesday.
Chief Art Acevedo says there is a "high probability" the officer will face federal charges.
The HPD says the officer has been relieved of duty and has been given a 48 hour notice of a disciplinary hearing.
NBC affiliate @KPRC2 says the officer has resigned.
Their story here: