i want to bring in msnbc contributor and former fbi profiler, clint van zandt. and clint, have you ever seen anything like this before that you can talk to perspective wise about a coordinated attack on law enforcement? >> yeah, thomas. we have seen it in the middle east. we haven't seen it take place here. realize, it was just a year ago in that is, texas, that one individual used kind of a home made armored car to attack dallas police headquarters. that was someone with some significant mental problems. and this shooter, according to the police chief, the one that law enforcement has killed, even though he indicated he was by himself, and he suggested his motivation was to kill white people, especially white police officers, we know now that there may have been a second sniper, as well as three or four other people perhaps involved. so, you know, we've got this potential conspiracy. and had there been explosive devices, that would have suggested that it might have been in planning for weeks or longer. but with the exclusion of the claimed explosive devices, the

. >> clint van zandt, thank you very much.nsight. >>> tonight, local church leaders are reacting to the tragic shootings of the past week. tracee wilkins has that story. >> reporter: the flags are flown at half-staff in honor of the officer who is have lost their lives in dallas. this comes on the heels of those socialed surfaced showing two african-american males losing their lives after confrontation with the police. it's prompted difficult but important conversations in this community. and a lot of those conversations are happening within the church. >> somebody is going to have to extend the olive branch to extend an act of peace and love and generosity. so as we have these fears that exist, we must be able to overcome those fears. >> reporter: coming up at 5:00, the role that the community is facing after these tragic losses. tracee wilkins, news4. >>> in just about 30 minutes from now, i'm going to be on facebook live talking with a former d.c. homicide detective about building bridges between the community and what to d

nbc news analyst and former fbi negotiator, clint van zandt, thank you for your insight this afternoonthe dallas tragedy heavy on their hearts and minds, philadelphia police and local community members came together for a day of relationship building. >> this afternoon there was a block party at 56th and pine street. it was a time to reflect on why this kind of interaction sometimes seems to be a rarity rather than the norm. at this summer block party, the more the merrier. >> we was on the bouncy house and swimming. we was having fun. >> our church community is here, we bring our kids here and they get to interact and enjoy, have fun and fellowship. >> we like to get in touch with the young people. and let them know we're real people and we care about them. that's what it's about. >> reporter: captain robin recognizes the importance of police hosting these events. a stark contrast to the officer involved shooting that played out in other cities this week. >> across america, we're having a problem. but this actually shows the other side of policing that exists regardless of what's goin

. >> former fbi profiler clint van zandt as always. appreciate your insights. . >> thank you, chris. >> and when we come back we'll talk to one dallas city council member how the city plans to honor and remember the five police officers who lost their lives thursday night. american express open cards can help you take on a new job, or fill a big order or expand your office and take on whatever comes next. find out how american express cards and services can help prepare you for growth at open.com. fi[announcer] is it a force of express cardnature?ervices or a sales event? the summer of audi sales event is here. get up to a $5,000 bonus on select audi models. i found her wandering miles from home. when the phone rang at 5am, i knew it was about mom. i see how hard it's been on her at work and i want to help. for the 5 million americans living with alzheimer's, and millions more who feel its effects. let's walk together to make an even bigger impact and end alzheimer's for good. find your walk near you at alz.org/walk. wopen up a lot of dawn. tough on grease...yet

let's get more on this from nbc news analyst clint van zandt. guys. >> you are somebody who obviously has a lot of experience in these kinds of negotiations, and as we now understand it from the police chief there were several minutes of talking with this suspect, ultimately it didn't lead anywhere. and they ended up sending in this robotic bomb. how unusual was that, and what struck you about the police chief's remarks? >> yeah, it's unusual, in a couple of ways. number one, the police chief didn't mince words, did he? he didn't come up with some catch phrase like anti-personnel distribution device or something. he said we put a bomb on the robot and we sent it in and we blew this guy up. and of course the reason being, he had already killed multiple police officers. why would you send a s.w.a.t. team through the door to get more officers, potentially killed. you know, i work to talk people out of hostage situations, and barricade situations, a lot of times as an fbi agent. but you know, that negotiator whoever he or she was, they have a lot of

sean henry, clint van zandt, two law enforcement professionals. thanks so much.after these messages. ♪ i don't want to lie down. i refuse to lie down. why suffer? stand up to chronic migraine... with botox®. botox® is the only treatment for chronic migraine shown to actually prevent headaches and migraines before they even start. botox® is for adults with chronic migraine, 15 or more headache days a month each lasting 4 hours or more. it's injected by a doctor once every 12 weeks. and is covered by most insurance. effects of botox® may spread hours to weeks after injection, causing serious symptoms. alert your doctor right away, as difficulty swallowing, speaking, breathing, eye problems, or muscle weakness can be signs of a life-threatening condition. side effects may include allergic reactions, neck and injection site pain, fatigue, and headache. don't take botox® if there's a skin infection. tell your doctor your medical history, muscle or nerve conditions, and medications, including botulinum toxins, as these may increase the risk of serious side effects. don