Robert Latimer, on a four-day release and back on his family farm in Saskatchewan, still believes he did not receive a fair trial in the death of his daughter Tracy, and remains bitter about the justice system.

Since the 12-year-old girl's death in 1993, Latimer has maintained he wanted to end his severely disabled daughter's suffering from years of pain and difficult surgeries.

"It's obvious they didn't understand what was going on, and the medical stuff is hard to understand," he told reporters outside his farm. " You're not just going to read it and know."

Latimer was back home this weekend at his family's Wilkie, Sask., farm. On Thursday he was granted four days unescorted medical leave to visit his 95-year-old mother in a nursing home.

Latimer was recently granted day parole, which will begin on Monday. He will live in a halfway house in Ottawa, where he is expected to lobby the government for a new trial.

Two sets of juries -- one in 1994, and the other at a retrial in 1997 -- convicted him of second degree murder. Latimer said jurors were never allowed to decide whether his actions were wrong.

"I really believe Canadians want issues like ours dealt with honestly," he said.

"If you look at the first trial, that wasn't honest. Then they pretty much had to carry it through and make that credible with another trial, which was just as crooked. They won't allow a jury to decide whether it was right or wrong."

Latimer's case ignited a national debate about mercy killing. The town of Wilkie, like the rest of the country, still appears to be divided on the issue.

"There is of course mixed reaction here in Saskatchewan," CTV's Rosie Del Campo told CTV Newsnet Saturday.

"There are people who are sympathetic towards Robert Latimer's case. There are people, of course, who disagree with the whole situation. But most people, for the most part, are arguing he may not be any harm to the community."

Latimer said he has been speaking with law students in Victoria, B.C. about his case.

Late last year, day parole was initially denied to Latimer. The panel hearing his original plea for release said he lacked sufficient insight into the factors that contributed to his decision to end his daughter's life.

That decision was overturned on appeal.

Latimer has written numerous letters to the Supreme Court and federal politicians seeking to have his case re-opened.

He remains haunted by a reference the Supreme Court made to more effective pain medication that could have been given to Tracy.

Latimer said he understood at the time that children's Tylenol was all her system could handle.

With files from The Canadian Press