Latest developments:

Sniper attack by leftist Joshua Jahn, 29 (confirmed by Daily Mail), killed two detainees at an ICE facility in Dallas and critically injured another.

Jahn then killed himself with his rifle.

The FBI described the incident as "an act of targeted violence."

The shooter opened fire from an elevated position.

Investigators found an unspent round with "Anti-ICE" political messaging.

Jahn's alleged socials show ties to far-left causes.

*   *   *

Update (1640ET): President trump has been briefed on the shooting at the Dallas ICE facility and is readying an EO to expand targeting of Domestic Terror Networks:

I have been briefed on the deadly shooting at the ICE Field Office in Dallas, Texas. It has now been revealed the deranged shooter wrote "Anti-ICE" on his shell casings. This is despicable!

The Brave Men and Women of ICE are just trying to do their jobs, and remove the "WORST of the WORST" Criminals out of our Country, but they are facing an unprecedented increase in threats, violence, and attacks by Deranged Radical Leftists. This violence is the result of the Radical Left Democrats constantly demonizing Law Enforcement, calling for ICE to be demolished, and comparing ICE Officers to "Nazis."

The continuing violence from Radical Left Terrorists, in the aftermath of Charlie Kirk's assassination, must be stopped. ICE Officers, and other Brave Members of Law Enforcement, are under grave threat.

We have already declared ANTIFA a Terrorist Organization, and I will be signing an Executive Order this week to dismantle these Domestic Terrorism Networks.

I AM CALLING ON ALL DEMOCRATS TO STOP THIS RHETORIC AGAINST ICE AND AMERICA'S LAW ENFORCEMENT, RIGHT NOW!

The Trump Administration is fully committed to backing Law Enforcement, Strong Borders, securing our Homeland, deporting Violent Illegal Criminals, and fully rooting out the Left Wing Domestic Terrorism that is terrorizing our Country.