Staff and students at North Hill Elementary School in Rochester will pay tribute to one of the victim's of the Navy Yard shooting victims Tuesday, by holding a flag lowering ceremony. Michael Arnold, 59, who is from Rochester, died along with 11 others when Aaron Alexis opened fire last month.

Arnold's brother is a fourth grade teacher at the school.

Michael Arnold image

Alexis, 34, an information technology contractor and former full-time Navy reservist was killed in a confrontation with security.

Arnold was living in Lorton, Va., and was a Navy veteran and avid pilot. He was building his own plane that he planned on flying from Virginia to Michigan before his 60th birthday.

Arnold graduated from the United States Naval Academy in Annapolis, Md., and served in the Navy for 29 years, before retiring as a captain last October, according to an article in the Navy Supply Corps Newsletter.

Arnold went to Rochester High School. He had two master's degrees from the University of Washington in Seattle, then went to work for LMI, a consulting firm based in McLean, Va.

He worked on designing ships in the yard.

The other victims:

• Kathy Gaarde, 62, of Woodbridge, Virginia, took care of her 94-year-old mother until she died last year, said Douglass Gaarde, her husband of 38 years. She also loved animals and counted bluebirds for a local refuge.

A Chicago native, Gaarde graduated from Florida State University before moving to Washington 38 years ago, where she has been a longtime Washington Capitals season ticket holder.

Douglass Gaarde said he traded e-mails with his wife shortly before the shooting.

"That was the last I heard from her," he told CNN's Anderson Cooper.

"You know, at first you don't think it could happen to her. I mean, there's 3,000 people in there," he said. "But as it gets later in the day ... you know if she was able to get to the phone she would have called home."

Their daughter, Jessica Gaarde, said her mother was the type of person would do anything for anyone she loved.

"I want them (people) to know she lived. She is not a number, or some statistic," she told Cooper.

• John Roger Johnson, 73, of Derwood, Maryland, was an avid fisherman and Redskins fan, CNN affiliate WJLA reported.

His wife described him as an awesome human being.

"He always said, 'Goodbye beautiful, I love you so much,'" said Judy Johnson, according to WJLA. "I was very lucky, and very blessed to find the human being that I found in him."

Her husband "always had a smile on his face," one of his neighbors told The Washington Post, adding that Johnson had lived in the neighborhood for more than 30 years.

A civilian who worked for the Navy, Johnson was described as a "smart man."

"He loved children. He loved our grandchildren. No one could ask for a better neighbor," the neighbor told the newspaper.

• Arthur Daniels, 51, of southeast Washington, D.C., was married to Priscilla Daniels for 30 years. They had five children and nine grandchildren, according to WTTG-TV.

He worked at the Navy Yard as a handyman for 17 years and was on the fourth floor of Building 197 when the shooting began, his wife said.

Daniels loved his family, cooking and dancing to James Brown, WJLA said.