Kinda sounds like the kid just ran into the robot rather than the other way around.
Exactly. Its also possible it was one of those cases where both of them tried to avoid it by turning in the same direction and running in to each other. Happens all the time that a kid runs into a random person in a mall, just that that it doesn't make for as good of a news story as "security robot tries to kill a child"
I personally don't see the point in these security robots, isn't this just a glorified security camera that drives around rather than being bolted to the wall?