how live unfieldolds. seconds. >>> good evening. thap are thanks for joining us. tonight many in chicago saying, protesters taking to the streets demanding action. it's the latest clash in an ongoing war against violence in a city that's lost so many sons and daughters. spike lee's latest film "chiraq" takes a look at the violence that's plagued the city. the toll it's taking and one mother who's fighting for change. here's my "nightline" coanchor byron pitts. >> this is my son, my baby. >> reporter: pam bosley knows chicago's pain like few others. a doting wife and mother. that's terrell, her oldest boy, raised in the church beside her. the last time they talked that's where he was. >> he was at church. i was like, baby, be careful. he's like, ma, you're always worrying. i'm good, i don't know why you're tripping, ain't nothing going to happen to me. my next call was, my baby been shot. >> reporter: he was 18, a college freshman, never a day's trouble, gunned down on his way into choir practice on chicago's south side. terrell collapsed at the pastor's feet. i ne