Suspected Baton Rouge cop killer Gavin Long — aka Cosmo Setepenra — seems to have established a motive for his rampage on social media.

The most graphic example is a photo posted June 7th of someone shooting into the driver’s seat of police car, which he retweeted using the name @ConvosWithCosmo:

They gone be mad when niggas start doing this. pic.twitter.com/dTga9v8ctA — The Hood Bible (@HoodBibIe) July 7, 2016

“They gone be mad when niggas start doing this,” the caption read.

He also posted statistics of the apparent number of officer-involved shooting deaths — and the supposed lack of charges:

Since 2000, 149 people have died at the hands of police. To date no officer charged in any of those deaths Read This https://t.co/Fx3snsGRfc — Convos With Cosmo (@ConvosWithCosmo) July 8, 2016

He wished Muslims a “Happy Ramadan 2016”: