Published: Mar 13, 2013 11:17 AM EDT
Updated: May 23, 2014 4:42 PM EDT

NAPLES, Fla.- Former Naples resident Staff Sergeant Marc Scialdo was one of five Americans killed Monday in a Black Hawk helicopter crash in southern Afghanistan. The cause of the crash is under investigation, according to U.S. officials.

St. John Neumann Catholic High School, where Scialdo was enrolled in the late 1990s, held a memorial service for the fallen 31-year-old soldier Wednesday morning, before their normally-scheduled mass.

The American flag at the school was also lowered to half-staff.

A family member tells WINK News Scialdo's wife, brother and father are currently at Dover AFB to receive the body.