NORWALK - A former New Canaan man recently released from jail after he was convicted of stabbing a New Canaan woman in 2008 and having child pornography on his computer was arrested again Tuesday by Norwalk police and charged with picking up a knife and sticking it into a wall, police said.

After sticking the knife in the wall during an incident on March 10 at his home at 3 Selleck St., Norwalk, Jonathan Pluff, 21, was alleged to have told those around him that they should know what he was capable of doing, Sgt. James Walsh said.

Those at the Selleck Street home told police that Pluff had just gotten out of prison and was off his psychiatric medications. He was taken to Norwalk Hospital for a 72-hour emergency hold so he could be examined by doctors and psychiatrists, Walsh said.

Police then obtained a warrant for Pluff's arrest on disorderly conduct charge and he was picked up in East Windsor on Tuesday.

In September 2009, Pluff, who has a history of psychological problems, pleaded guilty to second-degree child pornography and first-degree possession of narcotics as well as pleading no contest to a first-degree assault charge.

He was sentenced later that year to 30 months in jail and was required to register as a sex offender. His latest arrest could result in a violation of probation charge and he could be made to serve all or some of a 30-month suspended sentence that he received upon his conviction.

On July 12, 2008 Pluff was consuming cocaine, marijuana and alcohol with a New Canaan woman when he went berserk and took out a 12 inch knife and stabbed the woman in the neck.

The victim was found, "covered in blood, bleeding badly from the right side of her neck area," a police report of the incident said.

Pluff was arraigned on the disorderly conduct charge on Wednesday at state Superior Court in Norwalk and was released on a promise to appear in court.