The big difference with the two recent ICE murders is that the video evidence:

• Is graphic
• Clearly shows no wrongdoing on the part of the victims
• Shows sudden and completely unnecessary escalation to murder

And they were both US citizens, so ICE has no jurisdiction. So it doesn't even matter if they were serial murderers—that's a police matter, not immigration. (And, obviously, being white and valued members of their communities matters, too.)

Contrast that with:

• The Canadian who died in custody because they were denied access to necessary life-saving medications has plausible deniability.
• Many deaths by suicide in custody are "their fault" because they did it.
• ICE shootings without video evidence could plausibly be self-defense.
• Etc.

Plus, they're (mostly) not American citizens, so ICE could have a legal reason to detain them "with force" for "resisting arrest" (or whatever they want to spin).