Murder may be revenge for deaths of three Israeli youths, sources say.
Far-right conservative partners are skeptical of P.M. Netanyahu's participation in John Kerry's two-state push.
Francois Hollande promised to take a hard line toward Iran in upcoming nuclear talks this week as he began a three-day visit to Israel.
Differing views could bode poorly for Israel as the talks gain steam in the coming months.
The U.S. secretary of state said, however, the U.S. would not take any Iranian offer at face value.
At U.N. General Assembly, Israeli P.M. rebuts Iranian leader's speech.
Iran's foreign minister has called the leader of Israel a liar who requires deception to promote his policies.
Says the U.S. isn't taking any options off the table, including military action.
The topic of Iran is likely to be one of the most contentious between the two leaders.
Finance minister said walking out of the assembly was "irrelevant in current diplomacy."