Almost just happened to me. My sense of time is distorted as it was a near death experience and I am still coming down from intense adrenaline/shock, but I free fell at least a second and maybe two. I thought I was going to die as I was about 13 or 14 floors up at that point. I was able to get off on the 7th floor and took another elevator down to the first floor to make sure they took that elevator out of commission IMMEDIATELY, and the front desk said they were working on that elevator. I said WHAT??? They didn't put an elevator out of commission that they were working on???? Wow. I was free falling, and I was like f*ck, this is how I'm going to go out? Damn. Never take your next breath for granted.