5 Things to Know This Morning

Sept. 5, 2013— -- Your look at the five biggest and most buzz-worthy stories of the morning.

1. Obama to Push for International Support on Syria in Russia
President Obama begins a two-day visit to St. Petersburg for the Group of 20 economic summit where he'll face off with Russian President Vladimir Putin over Syria and other issues.

2. Gabrielle Brings Heavy Rain to Puerto Rico
Tropical Storm Gabrielle has formed south of Puerto Rico. It's not expected to hit the U.S. mainland.

3. One Dead, Several Injured in Houston School Stabbing
A school cafeteria fight turned deadly at Spring High School in Houston, Texas, where one student was stabbed to death and three others were injured. Three persons of interest are in custody, police said.

4. Controversial Montana Teacher Rape Sentence Appealed
Montana state prosecutors are appealing a controversial ruling in which a judge sentenced a former teacher to only 30 days in jail for raping a 14-year-old girl who later committed suicide.

5. Weiner Gets Into Angry Spat With Man
New York City mayoral candidate Anthony Weiner called a voter a "jackass" during a heated exchange at a Brooklyn restaurant.