Federal authorities in Idaho are following up on a possible sighting over the weekend of a Washington state man wanted in connection with the deaths of his three daughters.

Law enforcement has launched a search in an Idaho forest area for a Washington man suspected of kidnapping and murdering his three children. The U.S. Marshals Service is searching the Sawtooth National Forest for Travis Decker,

A possible sighting of Travis Decker -- the dad accused of murdering his three daughters over a month ago -- is being investigated in the wake of a family saying they may have spotted the fugitive father in Idaho late last week,