India, Feb. 21 -- New developments in the disappearance of 84-year-old Nancy Guthrie have fueled online discussion after a retired federal investigator shared details about search warrants and a man previously detained in connection with the case.

Jennifer Coffindaffer, a retired FBI agent, said in a Feb 21 post that there was "rock solid confirmation" that Luke Daley was the subject of two federal search warrants served last week in connection with Guthrie's disappearance. She noted that Daley was detained and later released, and that no arrests were made.

Coffindaffer added that Daley has denied any connection to the case.

According to Coffindaffer, a Range Rover was searched and later seized the same night Daley and his mother were ...