Kevin Edson

With his attorney, Shannon Lopez, left, beside him Kevin Edson is arraigned in Boston Municipal Court, Wednesday, April 16 2014, in Boston. Edson was arrested Tuesday near the Boston Marathon finish line carrying a backpack containing a rice cooker on the anniversary of the bombings. Edson was sent to a state psychiatric facility for an evaluation Wednesday following his initial court appearance and ordered held on $100,000 bail. He is due back in court on May 7.

(AP Photo/The Boston Globe, Wendy Maeda, Pool)

Kevin Edson booking photo.

BOSTON — The man that brought Copley Square to a standstill on Tuesday after leaving a large backpack at the finish line of the Boston Marathon was held on $100,000 cash bail and directed to Bridgewater State Hospital for a mental health evaluation.

Kevin Edson, 25, of Wakefield and Mission Hill, was charged in Boston Municipal Court on Wednesday with three misdemeanors for disturbing the peace, disorderly conduct, and disturbing a public assembly and two felony counts of use of a hoax device and making a false bomb threat. He faces up to 20 years in state prison.

Edson, known by his performance art name of Kayvon Edson, was arrested Tuesday night after he allegedly ran down Boylston Street barefoot yelling "Boston Strong" while dressed in dark clothing and a black hat. Edson allegedly left a large black backpack at the finish line before telling police that it contained a rice cooker.

Edson is due back in court May 7.

Court psychologist Jeffery Miner told the court that Edson has a history of psychiatric problems and has been off his medication for three-to-four months.

"He is a very bright young man but I have some serious concerns," said Miner before recommending him for further evaluation at a state mental hospital.

Judge Michael Coyne rejected the defense's request for $5,000 bail.

Edson reportedly told police when he was in custody that the bomb hoax was a piece of performance art. He had a streak of yellow paint down one cheek and a streak of blue paint down the other.

"I knew what I was doing. It was being conceived in my head. It's symbolism, come on, it, the performance, got the best of me," said Edson according to a police report read by Assistant District Attorney Susan Terrey

Edson was represented in court by Shannon Lopez.