Gov. Neil Abercrombie ordered that all national and Hawaii flags at state offices and agencies and the Hawaii National Guard are to be flown at half-staff on Thursday in memory of Chief Warrant Officer 2 Don C. Viray, an Army helicopter pilot killed in a helicopter crash in Afghanistan on April 19.

Viray, 25, was a native of Waipahu and a graduate of Roosevelt High School. 

A memorial service will be held Thursday at Borthwick Mortuary. Visitation is at 9 a.m. and a service is at 10 a.m. Viray will be laid to rest at the National Memorial Cemetery of the Pacific at Punchbowl.

"We honor Chief Warrant Officer 2 Viray and all of those who have paid the ultimate sacrifice as a result of their duty to the nation and fellow soldiers," Abercrombie said in a news release Monday. "My deepest sympathies go out to CW2 Viray’s family and friends."

Also killed in the helicopter crash were Chief Warrant Officer 2 Nicholas S. Johnson, 27, of San Diego; Spc. Dean R. Shaffer, 23, of Pekin, Ill.; and Spc. Chris J. Workman, 33, of Boise, Idaho. The soldiers were with A Company, 2nd Battalion, 25th Aviation Regiment, out of Wheeler Army Airfield.