Dow's grandmother, Helen Fram, lives next to the couple in a two-family home in Plaistow, a town of about 8,000 residents on the Massachusetts state line. She said Thursday that she's certain her grandson and Linscott did not hurt James. She said the boy sometimes banged his own head on the bathtub or threw himself off the toilet.
"I can hear anything, if anything is going on," she said. "They would never, ever hurt a baby. Never."
She said they initially went to the hospital with James but got scared when they found out police wanted to talk to them.
"They figured they didn't do anything, so they took off," she said.
Fram described her grandson as a loner and said he sometimes did siding or roofing work, though he is unemployed right now. She said she did not hear from him while he was on the run.
Asked why they would have gone to a theme park, she said that was one thing she did not understand.
Tuohy reported from Concord, N.H. Kyle Hightower in Orlando, Fla., contributed to this report.