CNN news 2013-08-28

It's Friday. My name is Carl Azuz. Welcome to CNN STUDENT NEWS. Thank you for watching. Our lead story, a college athlete is dead. Teenagers are facing murder charges, and the word people keep using to describe all this is senseless. Christopher Lane, the man in this Facebook pictures, was 23 years old. Born and raised in Australia, Lane was attending college in Dunkin, Oklahoma, on a baseball scholarship. Last week, he was shot and killed while out jogging. The teens accused of killing Lane are 15 year old James Edwards Jr. and 16 year old Chancey Luna. They've been charged as adults with first degree murder. 17-year old Michael Jones, their alleged driver, has been charged in connection with the murder. Police say, Jones told them the reason for the alleged shooting "We were bored and didn't have anything to do, so we decided to kill somebody." Authorities say the suspects were in a house when Lane jogged by and he became their target. Christopher Lane's girlfriend said the reaction to his death has been a mix of shock, anger and sadness. The shooting has caused outrage in Lane's home country, too. One Australian politician called for a boycott on visiting the U.S.

Next today, we're heading over to Italy for a salvage operation on an infamous shipwreck: in January of 2012, the Costa Concordia ran aground. 32 passengers were killed after a rock tore a giant hole in the ship. The Concordia flipped on to its side and it's set there, in the water, ever since. Engineers say the salvage operation, which caused at least $400 million is like no other in history. Hundreds of workers have been added. Now, they say they are ready for the next big step: here's an animation of the plan. The salvage crew built steel platforms under the water. In September, they are planning to use cables and massive flotation devices to get the ship back upright and ready to be towed to a nearby port. Engineers say they only have one shot to get it right, any error could cause the Concordia to break apart or just sink completely.

We've talked this school year about sinkholes: how some (inaudible) water eats away at certain types of rock and soil. Look at this video from Louisiana. This sinkhole is under the water. Now pay close attention to the trees: they are cypress trees around 150 feet tall, but they are getting shorter faster, as the sinkhole swallows them up. And look at this -- in less than one minute, they'll be completely under water. Officials estimate that this sinkhole is 324 feet across, about 50 feet deep in most spots, although in one corner, it goes down more than 400 feet. They think an underground salt cavern could be the cause.