The wife of a killed Salvation Army major says that his work ministering to people in a North Little Rock neighborhood will continue.

Salvation Army Maj. Cindy Wise led a Sunday service in the building where her husband, 40-year-old Philip Wise, was shot to death during a robbery attempt on Christmas Eve afternoon.

Authorities have said that as Philip Wise and his three young children approached the entrance to the facility, two men accosted him. One of the men pulled a gun, demanded money and then shot Wise.

Cindy Wise said during Sunday's service that she has peace because she knows the work in the North Little Rock neighborhood is not done yet. She says she plans to continue and that "together we will still provide salvation and grace to this neighborhood."

Philip Wise had worked for the Salvation Army for 16 years and had been at the Little Rock location for 3 years.

"He was so important to that community," North Little Rock Police Department spokesman Sgt. Terry Kuykendall told FoxNews.com.

"This has been a tremendous blow to (them)."

One co-worker described Wise as a "big, old teddy bear" who had a passion for music, Kuykendall told FoxNews.com. Wise was well-known in the community for his work with disadvantaged children.

The suspects remain at large. Police are offering a reward of up to $4,000 for any information leading to the suspects' arrests.

They are described as two African-American males and are believed to be 'armed with handguns.' Police are following up on leads, but are asking the public to help them by contacting them at (501) 758-1234 with any bit of information they may have.

The Associated Press contributed to this report.