US

NH high court to rule on fate of state's only death row convict in Manchester police shooting

FILE - In an Oct. 28, 2008 file photo, defendant Michael Addison talks with a member of the gallery during a break in his capital murder trial in the death of Manchester Police Officer Michael Briggs, in Hillsborough County Superior Court in Manchester, N.H. Addison was sentenced to death in 2008 for Briggs' murder. On Wednesday, Nov. 6, 2013, New Hampshire’s Supreme Court will rule on the constitutionality of the state’s death penalty and whether the death sentence of Addison will stand. (AP Photo/Union Leader, Bob LaPree, Pool, File)

FILE - In an Oct. 28, 2008 file photo, defendant Michael Addison talks with a member of the gallery during a break in his capital murder trial in the death of Manchester Police Officer Michael Briggs, in Hillsborough County Superior Court in Manchester, N.H. Addison was sentenced to death in 2008 for Briggs' murder. On Wednesday, Nov. 6, 2013, New Hampshire’s Supreme Court will rule on the constitutionality of the state’s death penalty and whether the death sentence of Addison will stand. (AP Photo/Union Leader, Bob LaPree, Pool, File)  (The Associated Press)

New Hampshire's Supreme Court is poised to rule on whether New Hampshire's only death row convict should be executed for killing a Manchester police officer in 2006.

If the court vacates the death sentence of 33-year-old Michael Addison on constitutional grounds, prosecutors would be barred from again seeking the death penalty against him.

Addison was sentenced to death in 2008 for gunning down Officer Michael Briggs as he attempted to arrest him after a violent rampage of robberies and drive-by shootings.

If the court affirms his death sentence, Addison could be the first killer executed in New Hampshire since 1939.

The ruling marks the first time the state's highest court has examined the death penalty in half a century. It heard day-long arguments one year ago.