CAMP PENDLETON, California (CNN) -- A Marine was sentenced Friday to 15 years in prison after being convicted of unpremeditated murder and other charges in connection with the death of a civilian in Hamdaniya, Iraq, last year.
Marine Sgt. Lawrence Hutchins III was also reduced in rank to lowest-level private and given a dishonorable discharge.
In addition to the unpremeditated murder conviction, Hutchins was found guilty Thursday on charges of larceny, making a false official statement and conspiracy in connection with the April 26, 2006, incident.
The conspiracy conviction includes conspiracy to commit murder, conspiracy to commit larceny, conspiracy to obstruct justice and conspiracy to make false official statements.
Hutchins was found not guilty of kidnapping, assault, housebreaking and obstruction of justice.
Another Marine, 24-year-old Cpl. Marshall Magincalda, was expected to be freed from prison Friday after having served 448 days for his conviction on a charge of conspiracy to commit murder in the Hamdaniya incident. He was sentenced earlier Friday to the time he had served and a reduction in rank to private.
Magincalda was acquitted of murder Wednesday but was found guilty of larceny and housebreaking.
Hutchins and Magincalda were among seven Marines and a Navy medic from Kilo Company, 3rd Battalion, 5th Marine Regiment, who were accused of taking part in the killing of 52-year-old Hashim Awad.
The Marine squad initially reported that Awad had planned to detonate a roadside bomb against their patrol. But several residents of Hamdaniya, including the victim's relatives, gave a different account, prompting a criminal investigation.
Prosecutors accuse Hutchins, the squad leader, of dragging Awad from his home, shooting him in the street and then making it look as if he had planned to ambush American troops. E-mail to a friend 
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