INDIANAPOLIS -- A national group touring the U.S. to highlight missing-person cases stopped in Indianapolis and Tipton on Tuesday to talk about two Indiana disappearances.

In Indianapolis, workers with the CUE Center for the Missing stopped at a gathering for Molly Datillo, who was living in Indianapolis when she disappeared in July 2004.

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Video: Group Spotlights 2 Missing-Person Cases

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Tuesday's gathering of friends and relatives was held in the 400 block of North High School Road to celebrate what would have been Datillo's 25th birthday.

Datillo's sister, Kendra Skidmore, told attendees that she and her siblings remember the day that her father called to say Datillo disappeared.

"I still remember the tone of his voice and hearing those two words that will forever be in my memory: 'Molly is missing,'" Skidmore said.

A $100,000 reward has been offered for information leading to Datillo's discovery and the arrest and conviction of the person or people involved in her disappearance.

In Tipton, the CUE Center held a media event for Shannon Sherrill, who was 6 years old when she vanished from the Thorntown area in 1986.

Sherrill's father, Michael Sherrill, said he hasn't given up hope that the mystery of his daughter's disappearance will be solved.

"It's like Day 1. Still looking," he said. "We will continue to look until I find her."