[Vause:] Tensions are high in Louisville, Kentucky as the city waits on a grand jury decision on possible charges in the death of Breonna Taylor. The 26-year-old was shot and killed by police in March in her own apartment when officers executed a no knock warrant in a drug investigation. CNN's Jason Carroll has the very latest.
[Jason Carroll, Cnn Correspondent:] Louisville on high alert, a state of emergency declared. Streets closed, and while police say the city is not on lockdown, that's not how it feels to some of those who work and live here.
[Unidentified Female:] This is unnecessary. They come out in riot gear when we protest, peaceful protest and they. come out and write here.
[Unidentified Male:] I want to be safe and I want others to be safe to, but you know, I don't think it's a good idea for guys to come out and do stuff to other people's property.
[Carroll:] Downtown businesses boarded up or closed, streets leading to Jefferson Square Park, the site of a Breonna Taylor memorial and gathering place of demonstrators, closed to cars.
[Unidentified Male:] The following steps we're put in place both to protect the public. And to facilitate first amendment activity.
[Carroll:] protestors were demanding the officers involved in Taylor's death be prosecuted say all of the precautions are creating a sense of unease. So said Pastor Timothy Bingley, who has organized past Demonstrations including one that led hundreds to peacefully protest outside Churchill Downs during the Kentucky Derby early this month.
[Pastor Timothy Findley, Protest Organizer:] We have not had were put in place to protect would demand those kinds of preparations. And I think it's very, very provocative.
[Carroll:] Adding to tensions an email sent today by Jonathan Mattingly, one of the three officers who served that no knock warrant when Taylor was killed. The email, sent to his police colleagues and first made public by Vice news, calls protesters thugs, and she writes that he and the other officers in the Taylor raid quoted, "Did the legal, moral and ethical thing that night." Mattingly, who is on administrative leave, said he wanted to support police during a difficult time, saying "We aren't better than anyone. This is not us against society, but it is good versus evil." Mattingly's attorney confirmed to CNN his client sent an mail. No mention of Taylor by name in the lengthy email. Last week, the city agreed to pay 12 million dollar civil settlement to the Taylor family and agreed to changes in police policy, including commanders approving search warrants before it goes to a judge seeking approval. But in the eyes of Taylor's mother, true justice comes when all of the officers involved that night are criminally charged. As for the protests, here's what she told us during our interview late last month.
[Tamika Palmer, Breonna Taylor's Mother:] I think there will be protests every day until justice is served.
[Carroll:] And if justice is not served?
[Palmer:] I don't know. I hate to even think about that.
[Carroll:] Late Tuesday, the city's mayor released a video statement saying he still has not been given any indication from the state attorney general's office in terms of when there might be a grand jury decision. The mayor says whatever that decision may be, he says the city will get through it together. Jason, Carroll, CNN Louisville, Kentucky.
[Vause:] And with that, we'll be right back. You're watching CNN. Back in a moment.