Robert O'Ryan, the man accused of stalking Olympic gold medalist Shawn Johnson, appeared in Superior Court Thursday in Los Angeles and entered a plea in the case.

O'Ryan pleaded not guilty to all three counts against him -- one felony count of stalking and two misdemeanor counts of carrying a loaded firearm in a vehicle.

His next court date is set for April 27, and his bail was raised from $35,000 to $220,000.

The 34-year-old was arrested after jumping a security fence at CBS Studios in Los Angeles where the hit ABC show "Dancing with the Stars" is filmed. Police said they found a loaded handgun and shotgun in his car, as well as love letters from O'Ryan to Johnson, 17.

According to the incident report, O'Ryan stated that he had permanently left Florida to drive across the country to L.A. because he believes Johnson is "speaking to him personally through the television and via ESP and that he will be with her no matter what." A temporary restraining order was filed on Johnson's behalf.

Keep checking back here at ETonline for the latest developing details.