A 75-year-old woman was found dead inside an abandoned warehouse in D.C.
Mary Houston and her husband of 48 years had a breakfast date Monday at Tories Diner on V Street NW -- they went on a date every day, her family members said.
Police say Houston got up to go to the bathroom and never returned.
A missing person's report was filed in her name, but her family says Houston, who had Alzheimer's, had a habit of disappearing and returning home.
"She'd always come home, but that didn't happen [this time]," her sister Millie Dorsey said.
A family friend spotted Houston at the corner of 10th and Franklin streets NE around 11 p.m. Tuesday, likely the last time she was seen alive.
Her body was found the next morning in an abandoned building in the 800 block of Channing Place NE by a construction worker -- just two blocks from her home.
Houston's family says she was not robbed and was found partially clothed, News4's Pat Collins reported. Her death has been classified a homicide due to blunt force trauma and asphyxiation.
For years, Houston was the officer of first impression for Old Town Trolley Tours. Friends described the mother of 4 and grandmother of 13 as lively.
"In one word, Miss Houston was sunshine," family friend Eric Holmes said. "She was a ray of sunshine for anyone she came in contact with."