INDIANAPOLIS, IN — Investigators in Indianapolis spent part of their Wednesday collecting items from a creek that are possibly linked to a missing 8-month-old child.
Chuck Robertson has been waiting for one call since 8-month-old Amiah was reported missing on Saturday.
"I hold that phone in my hand all day long just so I don't miss a phone call," Robertson said.
Robertson is clinging to hope they'll find his youngest grandchild alive.
"I think everybody's really getting on her really hard. They're putting a lot of pressure on Amber,” Roberston said. “Amber's only 19 years old, okay? 19-year-old single mother with two kids. She's relying on family, friends. Family, friends do everything they can for her but she's going through a lot of stuff right now."
Robertson believes her boyfriend Robert Lyons may have had something to do with Amiah's disappearance.
Her family claims Robert didn't want Amber talking to the baby's biological father.
"He didn't really like the idea of her being around anybody. He wanted to control her. And his anger issues and, you know, I don't trust him," Robertson said.
Robert Lyons was arrested over the weekend after an incident chuck described as a domestic dispute at a motel.
Investigators can't confirm if they've questioned him about the baby or if they're aware of what Amber told her family.
As detectives comb through conflicting accounts of what might have happened, Chuck maintains he's never changed his story.
"This isn't just a disappearing act. Somebody knows the truth," he said.
Meanwhile, Robert Lyons is expected to appear in court Thursday on charges of criminal recklessness and leaving the scene of an accident.
Officials have ordered Lyons not to contact Amber Robertson.