According to local news reports, all three victims were detainees. FBI Director Kash Patel confirmed no law enforcement officers were injured, and suggested he believed the motive was political:

While the investigation is ongoing, an initial review of the evidence shows an idealogical (sic.) motive behind this attack … One of the unspent shell casings recovered was engraved with the phrase ‘ANTI ICE.’

Huh, don’t know how to interpret that.

Following Wednesday’s shooting, Department of Homeland Security Secretary Kristi Noem pointed blame for the incident on rhetoric from the far-left: “For months, we’ve been warning politicians and the media to tone down their rhetoric about ICE law enforcement before someone was killed. These horrendous killings must serve as a wake-up call to the far-left that their rhetoric about ICE has consequences. Comparing ICE Day-in and day-out to the Nazi Gestapo, the Secret Police, and slave patrols has consequences.”

Or, you know, acting like the gestapo has consequences.