Video of SpaceX Falcon 1st stage landing attempt [Updated]

[Update] SpaceX engineers have examined the data and believe that sub-par performance of a throttle valve prevented a successful landing.  Per Elon Musk's tweet below, the next attempt will be in two months - which aligns with the CRS-7 mission (scheduled for June 19th).  This is consistent with previous announcements that the next landing attempts would be CRS-7 and CRS-8.

"Cause of hard rocket landing confirmed as due to slower than expected throttle valve response. Next attempt in 2 months." — Elon Musk (@elonmusk) April 18, 2015

SpaceX released this good quality video of the landing attempt to YouTube (watch on YouTube here). At first look I felt disappointment that it didn't stick the landing. That was replaced almost instantly by awe at that though that "this thing fell from the sky - not just the short distance on the video". Wow. As the rocket is just tipping over the "down hill" thruster (at the top of the stage) gives it's all to try to keep the the rocket vertical - but there's obviously too much inertia to overcome.


So, for an effort whose chances were estimated at 50/50, it was a brilliant achievement.