The man who has pleaded not guilty to first degree murder in the death of Toronto Police Sgt. Ryan Russell will not take the stand in his own defence.

Kachkar's lawyer Bob Richardson told the jury in his murder trial that he has just two more witnesses to call, making no mention of his client, with Judge Ian MacDonnell telling the jury that all non-expert evidence has been heard.

Richardson will call the first of his remaining witnesses (both psychiatrists) to the stand on Thursday.

The jury has been told to expect about two more weeks of evidence in the trial, which began February 4th and was expected to last two months.

Richardson has argued that his client was psychotic at the time of Sgt. Russell's death and should be found not criminally responsible.

The crown believes Kachkar is guilty of first-degree murder and has suggested his snowplow rampage was a way to take the frustration and dissatisfaction with his life out of a world in a possible "suicide by cop scenario."

On the 16th day of evidence court heard from the bus driver that drove Kachkar to Toronto January 6th, 2011 (Russell was killed January 12th, 2011).

Dhimitri Gushr testified that he knew Kachkar because he'd been a frequent passenger on his bus route that went to Buffalo in 2005-2006.

The last time he saw Kachkar he was stopped at the border because officials were concerned that he was working in the US without a permit (Kachkar had purchased property in Buffalo which was eventually lost to unpaid taxes).

"He was very upset," testified Gushr. "He said my sister did this to me," explaining that Kachkar believed his sister called immigration officials over an inheritance dispute.

The next time he saw Kachkar was on the ride to Toronto in January 2011.

"He appeared different," Gushr told court, testifying that he was scruffy and casually dressed, unlikely their previous encounters, but Kachkar did recognize him immediately after several years of no contact.

Gushr said Kachkar seemed more quiet, was in a rush to leave the bus, and didn't say anything when he left the vehicle.

Court also heard from Drew Toth, a resident service coach at a St. Catharine's shelter where Kachkar stayed starting in December 2010.

He met with Kachkar once for about 45 minutes and referred him to the Canadian Mental Health Association, a meeting that Toth said took place but didn't know what happened during the session.

He thought it was a bit odd that Kachkar was able to discuss bad things that had happened in his life but talked in a "monotone" voice and showed no signs that he was impacted by what he was discussing.

"(He) went through some pretty traumatic events...and had no emotional connectivity," testified Toth who said Kachkar had a half smirk on his face the whole time.

While at the shelter Kachkar spent time with Tom Sheridan, a man who also stayed there.

Sheridan liked Kachkar (who he called Rick) but said he often was unfocused during conversations.

"Sometimes his questions would be really off topic and I would just walk away and not understand it," said Sheridan, mentioning that Kachkar also sometimes withdrew from others and went to work on puzzles.

He told court about seeing Kachkar the day before he left the shelter for good and the now 46 year-old man was playing with a lock for a locker, something Sheridan said he did for four to six hours.

"He was just focusing on it for hours...I kept asking him if he was okay and he wouldn't answer me," said Sheridan, telling the jury Kachkar just smiled at him.

According Sheridan's testimony he saw Kachkar the next day and he told Sheridan he needed to talk. He looked "like he needed a friend."

Sheridan told Kachkar that he needed a nap and they'd talk when he woke up.

When he did, Kachkar was gone.