Online trolls have killed Jeremy Renner Official, a mobile app introduced more than two years ago as a gathering place for fans of — you guessed it — Jeremy Renner.

The app’s existence had become a running joke online in recent weeks after it was hijacked by people who lacked respect for a safe digital space dedicated to the “Avengers” actor. Even its death couldn’t stop the jokes.

It’s a lot to take in. So here’s a brief guide to what happened.

[Need a drink as you read this article? Here’s our Cooking recipe for the Jeremy Renner cocktail.]

Why am I reading this?

Why am I writing this?

Really, though. What was this app?

Fine. Let’s start at the beginning.

The app — “Jeremy Renner” on Google Play and “Jeremy Renner Official” in the Apple App Store — debuted in March 2017, promising “a deeper look” into the life of Mr. Renner, 48, according to a news release.