The flag at Veterans' Memorial at Pendleton Park in Harlingen remains at half-staff in honor of a late marine who served in two wars and co-founded the memorial.
John Grimes worked with Art Cohan as a committee member for the memorial.
"When we got together yesterday morning, we did this as a tribute to Art," he said. "At that time we didn't know the circumstances."
Harlingen police said Cohan killed his wife Debbie before taking his own life in a fiery explosion on Monday.
The apparent murder-suicide left his friend and fellow marine in shock.
"He was a career marine," Grimes said. "That's why the Marine Corps flag is flying underneath the American flag. It was a tribute to Art, the man, the veteran, the marine and not the whatever act that may have been committed."
People who know Cohan best believe his wife's death was a mercy killing.
She was left disabled after a drunk driver hit her.
Regardless of the circumstances, people at the memorial feel the lowered flag is fitting tribute.
"It's controversial but he did save a lot of other lives," Anastasia Suarez said. "We have freedom because of him. So that shouldn't be taken away."
"I think it should be at half-mast for what he did for his country," Warren Prescott said.
"I'd have to go with the flag at half-staff because he put his life on the line," James Mayer said. "He went into harm TMs way and he helped a bunch of others who went into harm TMs way. It's a tough call.
Grimes said marines are like family-- they stick together.
"God will be his sole judge."