Former Guantánamo convict Omar Khadr will be held in a maximum-security Canadian lockup for at least two more years, the Toronto Star reported Friday.

The newspaper said it obtained a federal assessment of the young man who admitted he threw a grenade at age 15 in a 2002 in Afghanistan, killing an American soldier during a U.S. raid on a suspected al Qaida safehouse.

Rather than make Khadr, now 26, eligible for day parole in March, the report subjects him to a new assessment in December 2014, the Star said.

The Toronto-born Khadr returned to his native Canada in September under an October 2010 Guantánamo war court guilty plea agreement. It sentenced him to at most eight more years between the prison camps in Cuba and Canadian lockups.

Khadr has been held at Canada’s Millhaven’s Assessment Unit in Bath, Ontario. Canadian prison officials recommended that Khadr be kept in a “highly structured environment in which individual and group interaction is subject to direct and constant supervision,” according to the newspaper, meaning less access to the full range of Canada’s federal detention rehabilitation programs.

His attorneys and human rights advocates had sought consideration of his case as a “child soldier,” and wanted him assigned to a program to prepare him for release into Canadian society.