A Gulfstream G100 carrying six people was flying from Bermuda to Boston when it lost contact near the Massachusetts island. A search for survivors has ended.

The Omani co-pilot who officials said tried to crash the plane was said to have embraced extremist Islamist views.

© Ammar Awad/Reuters

The co-pilot’s embrace of extreme Islamist views prompted Omani officials to scrutinize him, according to two people briefed on the investigation.

© Ariel Schalit/Associated Press