A Chicago gangs case announced by state and federal officials is one of the first that puts a spotlight on how fully gangs have embraced social media to goad foes and brag about their crimes.

Charging documents unsealed Friday accuse five members of the Goonie Boss gang faction of killing at least 11 people and terrorizing their South Side neighborhood.

In all, 23 people have been charged in an investigation that stretches back years. Other suspects were charged earlier, before authorities revealed the scope of the case Friday.

The U.S. attorney in Chicago, John Lausch, told reporters that investigators pulled evidence against the suspects from their social media postings.

The filings don’t say the gang resorted to violence to protect lucrative drug turf but rather that they seemed to obsess most over how to boost their reputations and status.