Murder suspect Jed Allen has been found dead by police.
Detectives had been hunting the 21-year-old since Friday following the discovery of the bodies of his mother, stepfather and stepsister.
Janet Jordon, 48, Philip Howard, 44, and their six-year-old daughter Derin were found stabbed at their home in Didcot, Oxfordshire.
An anonymous call to police about an Air France flight to JFK airport was a bomb threat, officials confirmed.
Maryland Police said: "The caller made a bomb threat involving commercial aviation."
The plane was escorted to New York by US fighter jets where it landed safely so it could be inspected.
An Air France flight reportedly being escorted into New York JFK airport after police received an anonymous call reporting a "chemical threat" on board is being inspected after it landed at New York JFK airport.
Air France confirmed the flight had landed safely and an inspection of the aircraft was ongoing.
An Air France flight is reportedly being escorted into New York JFK airport after police received an anonymous call reporting a "chemical threat" on board the plane, NBC reported.
The threat was not considered credible but the flight will land in a secure area to be searched, according to reports.
At least 10 people have died after a tornado hit the Mexico border city of Ciudad Acuna, officials say.
A spokeswoman for the interior department of the northern state of Coahuila said Monday's twister had also destroyed houses.
Air France Flight 22 from Charles de Gaulle airport in Paris is being escorted by US fighter jets to New York's John F. Kennedy airport after an anonymous threat was made against the flight, New York's WABC television reported on Monday.
The flight will land in a secure area to be searched, according to the report.