ST. CLOUD —
Investigators reopened the case in September when Richard Harter turned over the boy's Social Security card to an Indiana State Police detective.
That turned up a man with the same Social Security number and date of birth living in Long Prairie, about 100 miles northwest of Minneapolis. A driver's license photo for the man appeared to resemble Landers, police said.
Indiana State Police then contacted Minnesota law enforcement agencies, which began investigating along with the FBI and the Social Security Administration.
The grandparents were found living in nearby Browerville, Minn.
"By all accounts, it didn't appear he suffered from any abuse, either physical or mental," Galaviz said.