FORT LAUDERDALE, Fla. (AP) — A Florida woman pleaded guilty and was sent to prison Wednesday for threatening a man whose 6-year-old son was killed in the 2012 mass shooting at a Connecticut school, which she contended was a hoax.

Senior U.S. District Judge James Cohn sentenced Lucy Richards, 57, to five months in prison, followed by five months of home detention. She pleaded guilty to interstate transmission of a threat to injure in communications with Lenny Pozner, the father of Noah Pozner, who died in the Sandy Hook school shooting in Newtown, Connecticut.

Cohn called Richards' actions towa...