The "dems soft coup" is a Constitutionally prescribed remediation process, in which Republicans joined.

Did they ever catch Laken RIley's killer?

Impeachments are a political exercise and votes largely fall along party lines - it's not the exoneration you think it is.

Second Impeachment - Trump was charged with incitement of insurrection following the January 6 Capitol riot.
House Vote: Mostly along party lines, but 10 Republicans joined Democrats to vote yes.
Senate Verdict: Acquitted. While the vote fell short of the 67 votes needed to convict, seven Republicans crossed party lines to vote guilty alongside all 50 Democrats.

Republicans are more upset about Laken Riley than they are for all the Jews killed during the holocaust.

Do you see how stupid this is?

Donald Trump seems pretty in control of security in DC these days as President. Why wasn't he as in control back then when he was President?

Ok, they "claim" evidence was deleted - what did that evidence show? How do they know it was exculpatory evidence? Who saw it and when - and what records show that it once existed and now doesn't. Did you even ask yourself such questions?