Capitol Police Officer Brian Sicknick was a Trump supporter.
The Democrats have not apologized and admitted they were wrong to support the riotous insurrectionists during the BLM/Antifa uprising burning multiple cities across the United States, by thousands of left-wing criminals killing and injuring scores more people over many months then the three-hours one time riot by a couple hundred people in DC.
It is also noteworthy that when police officers killed black violent criminal thugs engaged in malicious activity the BLM/Antifa/left-wing rioted and were supported by Democrats because the dead criminal was engaged in violence but unarmed. On the other hand, when a white unarmed non-dangerous U.S. veteran woman engaged in non-violent trespassing in the Capitol building and was shot dead for the high crime of attempting to go through a broken window, the Democrats and the Left had no complaints over her being killed by a police officer.