A memorial service for Army Spc. Toby R. Olsen, a Mililani High School graduate killed in Iraq this month, will be held Friday in Honolulu.

Visitation will be from 9:30 to 10:30 a.m. at Borthwick Mortuary, followed by a memorial service at 10:30 a.m.

Burial will take place at 11:30 a.m. at the National Memorial Cemetery of the Pacific at Punchbowl. Aloha attire.

Olsen, 28, was one of four soldiers killed Jan. 20 in Karma, Iraq, when a roadside bomb detonated near their Humvee, the Department of Defense reported.

The soldiers were assigned to the 3rd Battalion, 509th Infantry (Airborne) out of Fort Richardson, Alaska.

Olsen was born in Maryland and moved to Hawai'i with his family in the early 1990s. He was the son of James and Lis Olsen. James Olsen is an Army colonel and eye doctor stationed in Germany.

He is also survived by his brother, Michael, who works at Leeward Community College; sister, Tanya, who lives in Germany; and grandparents, John and Hiroko Olsen of Wahiawa.