He died on October 21st after his aircraft collided with a snow-clearing machine at a Moscow airfield.
The only CCTV footage released so far, by Russian channel TV Centre, shows two people believed to be Nemtsov and Duritskaya walking on the bridge, but at the moment of the killing the pair are obscured by a passing snow-clearing machine.
Using machetes, chain saws, a giant weed-clearing machine and rakes, they cleared a 50-yard swatch of land and spent nine hours searching for the bones and teeth of murder victims.
These important snow-clearing machines were used very effectively during last month's 15-inch blizzard.
A three-storey "road-builder" on caterpillar tracks would be "capable of producing from within itself one mile of four-lane elevated superhighway every hour", preceded by tree-clearing machines, equipped with laser-beams to slash down anything in their path.
Allied soldiers fought through woods to clear German machine gun positions and take prisoners.
Fireweed is one of the first plants to appear after a forest or brush fire; it also rapidly covers scrub or woodland areas that have been cleared by machine.
As you can see, it's clear that machine intelligence is a very active space.
Nowadays it is clear that machine learning techniques are essential for developing such a visual perception for driving.
Although it seems that software metrics have moved beyond mere performance measurement, it is not too clear how machine effectiveness, efficiency, and effort pertain to human requirements on such matters.
But from where I sit, running a company that enables a huge number of real-world machine-learning projects, it's clear that machine learning is already forcing massive changes in the way companies operate.
