Israel believes an air strike onBeirut killed a senior commander of the Lebanese armed group Hezbollah, according to Israel’s public broadcaster Kan. Israel carried out the attack in response to a rocket attack on the Golan Heights that killed 12 youngsters three days ago, Reuters reported. The attack caused a loud blast and a plume of smoke that rose above Beirut’s southern suburbs, which is a stronghold of the Iran-backed Hezbollah, at around 7:40 p.m. (1640 GMT), a Reuters witness said. Two security sources in Lebanon named the target of Tuesday’s attack as Muhsin Shukr, also known as Fuad …