The accused in an hours-long standoff at the downtown WCB building in the fall of 2009 will testify a day later than expected.

Patrick Clayton was supposed to take the stand Wednesday, however his lawyer asked for a delay.

Defence lawyer Arnold Piragoff told the judge the Remand Centre, where Clayton is being held, had been under lock down, and his client had not been able to take required medication.

Without his medication, Piragoff said Clayton would not be able to concentrate on the stand.

Clayton was charged after a ten-hour standoff where nine hostages were involved at the WCB building in October 2009.

Afterwards, Clayton faced a total of eighteen charges related to the hostage-taking

Clayton was charged with nine counts of unlawful confinement, six counts of pointing a firearm, possession of an offensive weapon dangerous to the public, careless use or storage of a firearm and use of a firearm during the commission of an offence.

Last week, he pleaded guilty to pointing a firearm, use of a firearm to take hostages, and having a prohibited weapon in his possession.

The sentencing hearing for Patrick Clayton has been held throughout the week, with two victim impact statements read in court on Tuesday, and eight more were entered in court on Wednesday.

One came from the man in the security booth at the WCB, who was seen on surveillance footage of the incident running away from Clayton, as the accused fired a shot in his direction.

Security guard Nadir Gova said the experience has deeply affected him, in his statement he said: "The first couple of days after the incident I thought I was fine…by the weekend I noticed I started drinking more,

"I noticed a change in my sleeping pattern, as I kept hearing gunshots over and over."

Since that day, Gova said he's had to stop watching crime shows on TV, and avoids being in crowds – he's also become suspicious of anybody with packages coming into the WCB building.

Another victim, who was one of nine hostages held for several hours in the building, expressed her anger at being held hostage, and for the fear her children felt during the traumatic experience.

"What is more appalling is that society somehow finds it acceptable for people to use guns as a means of getting what they want. This is a travesty, I worry for my children and my grandchildren,

"You have done this."

Clayton is expected to take the stand Thursday morning.

With files from David Ewasuk