As you know, Alex Trebek passed on a couple weeks ago, after a public battle with cancer. On November 16th, I believe, Google added a little easter egg to the search results for a search on his name - [Alex Trebek]. The "Did you mean" result added "WHO IS" to the result.
Here is a screen shot on desktop search (click to enlarge):
Here it is on mobile:
Alex will be missed deeply by so many people, including those in the SEO community.
Hat tip to @SeanTHarringto1 for spotting this.
Forum discussion at Twitter.