If your only source of news is CNN or MSNBC or the Washington Post, there’s a good chance you believe last week’s Waukesha Christmas Parade attack, which killed six and injured dozens of others, was the work of a driverless, sentient vehicle.

“Here’s what we know so far on the sequence of events that led to the Waukesha tragedy caused by an SUV,” the Washington Post wrote on Nov. 24 in a since-deleted tweet.