serena williams's hopes shattered by an unsided italian, roberta vinci -- unseeded italian roberta vincini >>> at least 107 died after a construction crane collapse p appsed on to a ground -- collapsed on to a grand mosque in mecca. millions were gathering for the handling, the annual -- hajj, the annual pilgrimage. gerald tan reports. >> reporter: the moment the crane collapsed, captured on amateur video, a clip posted online provides the idea of the chaos that followed. the construction crane toppling through the roof of the grand mosque in the holy city of mecca, killing scores of people, injuring many more. >> nobody had a clue what happened. it compared the situation, it felt like a bomb blast. you don't know what happens. in the night it was like a thunderstorm. >> reporter: for several hours scenes from inside the grand mosque showed emergency crews rushing to help victims and to clear the site of debris. >> translation: the incident happened at 5:23 p.m., due to the severe rain and wind speed as high as 83km. it caused the train to collapse, death and injuries. the crane collapsed

losing to unseeded italian roberta vincini. williams would have been as many remarked the first woman to win all major events in one year since graf in 1988. big news there and more ahead. also -- >> we want to show you this. a 9/11 tradition at ground zero. when we come back, the sights and sounds of today's remember balance ceremony. a look at the terror threats as they evolve today in a post- 9/11 world. and the day's other headlines this hour. take a look at another photo gloing viral on social media. a rainbow appearing over the freedom tower on the eve of 9/11. my name is anne. i'm one of the real live attorneys you can talk to through legalzoom. don't let unanswered legal questions hold you up, because we're here, we're here, and we've got your back. legalzoom. legal help is here. you are looking at can you spot the difference? no? you can't see that? alright, let's take a look. the one on the right just used 1% less fuel than the one on the left. now, to an airline, a 1% difference could save enough fuel to power hundre