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,” the caption read.

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

He wished Muslims a “Happy Ramadan 2016”: