There are some brief clips of both the sail boat (appears to be about 22 to 25 foot Cuddy cabin sloop--rig is standing, boom in the cockpit,, may have taken out the back stay (?)). The Power boat appears to be about 25 to 26 feet long--I/O. There were 7 (3 went into the water) on the sail boat and 4 on the power boat. Apparently neither craft sank or took on large amounts of water.
Is there a speed limit ? --I believe this occurred in Lake Washington? I would think that a relatively confined space after dark, that a wide open speed in its self would be dangerous.
In any boating accident there is a proportionment of fault--however the driver of the power boat being intoxicated may override the right of way issues, if any. The $500,000 bail is pretty high, and apparently the driver of the power boat had a DUI and beat the charge with a year suspended jail sentence.
I have found in our area, that the marine patrol is often not well equipped to investigate accidents on the water, and even more so after dark. We had an incident when a Go Fast traveling at a speed of at least 35 knots hit a rental PWC which was at idle killing the two passengers. The Marine patrol did not get a blood alcohol for over 10 hours--and eventually found a number of liquor bottles which the driver of the Go Fast had thrown out of his boat right after the collision. The driver was found not guilty in a criminal trial, but lost in a civil case where the award was in the 8 figure range.