MT. VERNON — A pair of Mt. Vernon men were formally charged with Class X Felony Armed Robbery after an incident in which they robbed an individual of police confidence with a knife.  Authorities arrested 43 year old Bobby G. Berner and 49 year old Michael A. Jones after an incident on May 23, in which Berner took money from the individual by threatening the imminent use of force.  Jones is also accused in the crime, but his charge alleges that he had accountability for the crime.  He was also charged with felony unlawful possession of methamphetamine with intent to deliver and unlawful possession of methamphetamine. Both are being held at the Jefferson County Justice Center. Berner’s bond is set at $75,000 and Jones’ bond is set at $77,000.