Angry protesters in Louisville, Kentucky, screamed and broke out into tears Wednesday upon learning of a grand jury’s decision to only indict one cop involved in the shooting death of Breonna Taylor — and not for her killing.

Hordes of demonstrators had gathered in downtown Louisville ahead of the announcement of the much-anticipated findings in the grand jury probe into the fatal March 13 incident.

As the announcement played over loud speakers in Jefferson Square Park that the grand jury in Jefferson County, Ky., had charged former Louisville police detective Brett Hankison with three counts of wanton endangerment in the first degree, some protestors could be heard shouting, “What the f—k is this?” “What the hell?” and “Is that it?” according to video posted to Twitter.

“What the hell? F—k y’all!” another yelled as some shouted out in agony.

Activists cried and embraced each other as organizers vowed to keep protesting Taylor’s death.

Moments after the grand jury decision demonstrators began to march through the streets in protest, some chanting, “No justice! No peace!” while others called out Taylor’s name and held up large signage reading, “Abolish the police.”

The grand jury did not announce any charges against the two other officers involved in Taylor’s death.

“I’m heartbroken,” one protester, Logan Cleaver, told the Courier-Journal immediately after the grand jury’s decision was announced. “This is not a justice system if it’s not for everybody.”

The attorney for Taylor’s family blasted the grand jury decision.

“This is outrageous and offensive!” lawyer Benjamin Crump said in a tweet shortly after the indictment dropped against Hankison, who was charged for firing into a neighboring apartment the night Taylor was killed.

None of the charges are directly related to the death of 26-year-old Taylor.

“If Brett Hankison’s behavior was wanton endangerment to people in neighboring apartments, then it should have been wanton endangerment in Breonna Taylor’s apartment too. In fact, it should have been ruled wanton murder!” Crump said in another tweet.

As hundreds of protestors marched through the streets of Louisville Wednesday afternoon demanding justice for Taylor, some yelled and cursed at cops on the scene.

“Tonight, tempers may flare,” warned community organizer Reece Chenault, 40, adding, “People are going to be sad and I think you are going to see a lot of tears with folks who are marching.”

An apparent militia group of about eight donning helmets, bullet-proof vests and long guns was also spotted trumping through the downtown area.

The charges against Hankison come six months after Taylor, an EMT, was shot by Louisville police while carrying out a search warrant at her apartment as part of a drug investigation.

Cops had believed Taylor was stashing drugs for her ex-boyfriend, though no drugs were found in the apartment.

Hankison fired off 10 shots during the botched raid and was indicted because some struck neighboring apartments.

Taylor’s death, along with the May 25 police killing of George Floyd in Minnesota, have sparked nationwide protests against police brutality and for racial justice.

The city of Louisville was bracing for riots and civil unrest ahead of the grand jury announcement.

Members of the Kentucky National Guard were also deployed in the city, where a state of emergency has already been declared in anticipation of protests.

Barricades have been set up to restrict vehicle access to downtown areas, stores and restaurants have boarded up their windows, and federal buildings have been closed.

With Post wires