Shark Attacks: Livestock carcasses in the Red Sea?

One theory offered in explanation of the recent shark attacks in Egypt claims that the sharks were drawn by the carcasses of sheep in the water. This news report from a few weeks ago confirms that a ship did dump many carcasses and that the resulting pollution was heavy enough to cause concern at Sharm-el-Sheikh. According to the theory, scavenging sharks followed the drifting line of easy meals to the resort beaches where people were in the water.