Cranbrook, British Columbia • A Canadian prosecutor has asked a judge to send a message of denunciation in sentencing a man and woman who took a 13-year-old girl into the United States to marry the now imprisoned leader of a polygamous sect.

Peter Wilson told a British Columbia Supreme Court judge Friday that Brandon Blackmore should serve 12 to 18 months and Gail Blackmore deserves a six- to 12-month sentence.

The former husband and wife were convicted earlier this year of taking the girl out of Canada for sexual purposes in 2004.

The trial heard the young woman was taken to the U.S. to marry Warren Jeffs, the prophet of the Fundamentalist Church of Jesus Christ of Latter-Day Saints, who is serving a life sentence for assaulting two of his child brides.

Lawyers enter the courthouse in Cranbrook, British Columbia, Friday, Feb. 3, 2017. Two people linked to the polygamous community of Bountiful, B.C., could have foreseen that their actions would lead to a girl having sex with the church's prophet well before her 14th birthday, a B.C. Supreme Court judge said as he convicted the estranged husband and wife Brandon Blackmore and Gail Blackmore Friday. He found James Oler not guilty of the same charge. (Jeff McIntosh/The Canadian Press via AP)
Lawyers enter the courthouse in Cranbrook, British Columbia, Friday, Feb. 3, 2017. Two people linked to the polygamous community of Bountiful, B.C., could have foreseen that their actions would lead to a girl having sex with the church's prophet well before her 14th birthday, a B.C. Supreme Court judge said as he convicted the estranged husband and wife Brandon Blackmore and Gail Blackmore Friday. He found James Oler not guilty of the same charge. (Jeff McIntosh/The Canadian Press via AP)
Brandon Blackmore arrives at the courthouse in Cranbrook, British Columbia, Friday, Feb. 3, 2017. Two people linked to the polygamous community of Bountiful, B.C., could have foreseen that their actions would lead to a girl having sex with the church's prophet well before her 14th birthday, a B.C. Supreme Court judge said as he convicted estranged husband and wife Brandon Blackmore and Gail Blackmore Friday. (Jeff McIntosh/The Canadian Press via AP)
Brandon Blackmore arrives at the courthouse in Cranbrook, British Columbia, Friday, Feb. 3, 2017. Two people linked to the polygamous community of Bountiful, B.C., could have foreseen that their actions would lead to a girl having sex with the church's prophet well before her 14th birthday, a B.C. Supreme Court judge said as he convicted estranged husband and wife Brandon Blackmore and Gail Blackmore Friday. (Jeff McIntosh/The Canadian Press via AP)
Supporters of Brandon Blackmore, Gail Blackmore and James Oler arrive at the courthouse in Cranbrook, British Columbia, Friday, Feb. 3, 2017. Two people linked to the polygamous community of Bountiful, B.C., could have foreseen that their actions would lead to a girl having sex with the church's prophet well before her 14th birthday, a B.C. Supreme Court judge said as he convicted estranged husband and wife Brandon Blackmore and Gail Blackmore Friday. He found James Oler not guilty of the same charge. (Jeff McIntosh/The Canadian Press via AP)
Supporters of Brandon Blackmore, Gail Blackmore and James Oler arrive at the courthouse in Cranbrook, British Columbia, Friday, Feb. 3, 2017. Two people linked to the polygamous community of Bountiful, B.C., could have foreseen that their actions would lead to a girl having sex with the church's prophet well before her 14th birthday, a B.C. Supreme Court judge said as he convicted estranged husband and wife Brandon Blackmore and Gail Blackmore Friday. He found James Oler not guilty of the same charge. (Jeff McIntosh/The Canadian Press via AP)