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(NEXSTAR) — A woman whose father was shot and killed when a gunman opened fire at a Boulder, Colorado supermarket Monday shared a touching tribute to him on Tuesday.

“I am heartbroken to announce that my Dad, my hero, Kevin Mahoney, was killed in the King Soopers shooting in my hometown of Boulder, CO,” Erika Mahoney tweeted, sharing a photo of the two of them on her wedding day.

In the photo, Erika Mahoney looks lovingly at her father as he holds her arm.

“My dad represents all things Love. I’m so thankful he could walk me down the aisle last summer,” she wrote.

Kevin Mahoney was 61 years old when the shooter took his life, along with those of nine other people.

“I am now pregnant,” Erika Mahoney wrote. “I know he wants me to be strong for his granddaughter.”

Mahoney, who is the news director at KAZU Public Radio in the Monterey, California area, thanked Boulder police for “being kind through this painful tragedy.”

“I love you forever Dad. You are always with me,” she tweeted.