After a relatively calm night no tear gas or shots fired, a grand jury is expected to begin hearing evidence this morning about the killing of Michael brown. Attorney general Eric holder will be on... See More
After a relatively calm night no tear gas or shots fired, a grand jury is expected to begin hearing evidence this morning about the killing of Michael brown. Attorney general Eric holder will be on the scene today and ABC's Jim Avila is in Ferguson right now. Good morning, Jim. Reporter: Good morning, George. As you say, a big day on the ground here in Ferguson. First of all, as you mentioned, the attorney general of the United States, Eric holder, on the ground to meet with his FBI agents and possibly visit the killing scene. And just a few miles away from that, the grand jury will meet for the first time to hear evidence in the killing of Michael brown. This morning, a grand jury will hear what officer Darren Wilson, scene here in newly released video, told investigators about the broad day much light shooting of the unarmed 18-year-old which has the police union concerned enough to speak out this morning. He has been vilified in the media and by the politicians and we felt it was necessary that we had to come out and just ask for due process for Darren Wilson. Back to the designated area. Reporter: Overnight tensions high after police say some demonstrators hurled bottles at officers, nearly 50 people arrested and 3 loaded handguns confiscated by police. But trying to prevent the violence from escalating some residents quickly joined hands forring a peaceful barricade between police officers and crowds. They urge calm and peace. Reporter: Another rough night for residences like Donald harry who lived through many intense nights. Out your backyard you've seen tear gas the whole nine yards. Tear gas, rubber bullets. You name it, it comes through here. Reporter: His car window broken and tear gas canisters? His backyard and his 10-year-old confined to their property with no school for more than a week. Dad, why are police trying to blow our house up? Reporter: Tuesday's relative calm despite another officer involved shooting in nearby St. Louis. Police fatally shot a 25-year-old african-american robbery suspect who they say was waving a knife and yelling shoot me, kill me now. The smartphone did not respond to verbal commands to drop his weapon and approached both officers and then when he closed within three to four feet of the knife the officers fired their weapon. Reporter: Authorities are hoping they've reached a turning point and credit local community leaders with keeping things calm last night. George and robin. We can only hope thatties. Jim, thanks very much.
This transcript has been automatically generated and may not be 100% accurate.