DESCRIBED by Israel as the Gaza Strip's "most brilliant and brutal terrorist," Salah Shehadeh spent more than a decade in Israeli and Palestinian jails, and for the last three years was often in hiding as he oversaw Hamas' frequent attacks.

Described by Israel as the Gaza Strip’s ‘‘most brilliant and brutal terrorist,’’ Salah Shehadeh spent more than a decade in Israeli and Palestinian jails, and for the last three years was often in hiding as he oversaw Hamas’ frequent attacks.