any effect. >> tazer, tazer, tazer. >> reporter: the tazer stun gun has gone through a lifetime of advances since then. it is credited with saving ten was thousands of lives. data collected by cbs5 investigates from police agencies across the state show officers still having trouble connecting with the tazer. in yuma county, they miss as often as 27% of yuma police miss 12% of the time. glendale police also miss 12% of the time. another 19% need a second shot to take down the suspect. >> there's a number of things. >> reporter: kevin but cher believes tazers are an irreplaceable tool. they're supposed to work like this. one tazer shot and he is down and in custody. brandishing a knife. one tazer shot and there goes the blade. not all situations work out like that. crooks are trying to figure out how to beat the devices. >> some are practicing just a flail move where they just try -- as soon as they know the tazer deolympics they flail -- deploys, they flail to try to break the leads. or they'll stop, drop and roll and that will pull the leads apart as well. phoenix restaurant shows what it

in yuma county -- tazer. in yuma county, they miss 27% of the time. time. glendale police also miss 12% of the same. 19% need a second shot to take down the suspect. >> there's a number of things. >> reporter: kevin is a retired police sergeant who believes tazers are an irreplaceable tool. they're supposed to work like this. one shot and he is down and in cto standoff between deputies and a man brandishing a knife, one shot, and there goes the blade. but it doesn't always work out like that. crooks are trying to figure out how to beat the devices. >> some are practicing just a flail. as soon as they know the tazer deploy, they flail it to break the leads or they'll fall down and do a roll motion and that would pull it off as well >> reporter: this incident in a phoenix restaurant shows what it looks like. and he starts fighting back and flailing. repeated shots appear to do nothing. >> can they beat a tazer by flailing their arms? >> you'd have to windmill a lot. very difficult to beat a tazer >> reporter: while he hears about it happening occasionally, if

repeated shots appear to do nothing. >> can they beat a tazer by flailing their arms? >> you'd have to windmill a lot. very difficult to beat a if the police officers are smart, it becomes close to impossible. >> all you have to do is outwait them. or go to their legs. >> reporter: officials tell us their newer model has increased effectiveness because it can fire twice and has two laser sights for aiming. >>> some criminals are using pets as weapons, trading in their guns for dogs. one man in los angeles is so bothered by this practice that he is actively going out six days a week looking for strays and neglected dogs that criminals may snatch up and train. >> i've seen dogs that come to >> he often works to reverse training. >>> social media is getting a lot nastier. new features are coming to twitter to help users filter out tweets. twitter is also making it easier to report abuse. >>> there's only nine until black friday. retailers are preparing for a promising holiday shopping season. commerce department just announced that americans stepped up their spending last

dropped next to me, i do not remember picking up the tazer and dropping it next to his body, that i a state of fear and shock that all of that is blocked out to me. essentially that's what he's saying. that goes back to this idea that you can craft a defense. this is the shocking part of american jurisprudence as it relates to these shootings. shocking part is you can actually craft a defense that says, i felt so much fear that the things i actually did, i do not -- it is blacked out by the intensity of that fear. and therefore i don't even remember the things the video shows everybody sees me doing. >> when you look at this video, do you think -- would an officer have a valid reason for shooting someone multiple times in the back, walking away to pick up something laying on the ground and then walking back and dropping it? >> absolutely not. it was troubling months ago and tonight. any of us look at this, see the victim attempting to rup away, as slowly as he was. shots fired. police officer who casually walks towards the subject. disturb a crime scene by moving the tazer from wher

the deputies used a tazer on man. the state investi looking into the case. >> happening now, a manhunt in florida for the suspect in a shooting death of a baby and two women. tim, you are learning what happened here? >> yes, it happened in jacksonville, florida, a group gathered at the store last night and someone started shoot and the victims drove to a fire station for help. five people were shot. one woman died at the scene and hospital. an argument between two women triggered the shooting the names and ages of the vick tips are not released yet. back to you. >> new this morning, leon russel died and passed away at the age of 74. he was recovering from a bypass. he wrote tiekt rope and delta lady and a song by you. russel was inducted into the rock and roll hall of fame five years ago. >> tributes for leonard cohen is piling up. the crowds are still gathering and leaving flowers. he died on thursday at 82 years there was a little drama at the finding dory premier. >> one of the co-stars not on the red carpet. >> i

. >> and eventually things escalated and they fired nonlethal round and tried a tazer and released the police dog. >> as the 40-millimeter sponges were hitting him and the dog bit him it had no impact on him. >> it was at that point within the dog handler that the shot was fired by chris vigil. >> the dog was not stabbed but it looked like he was stabbing the dog and then he raised his arm and made motions or lunged towards the canine handler and i believe that is when chris vigil fired the shot. the sheriff spent an hour this afternoon laying it out for reporters. vigil's own camera had fallen off through the encounter and the sheriff laid clip from two other cameras and played the 911 call from luke smith's father and uncle that said luke had stabbed them in a drug induced rage. >> i need an ambulance. >> the next day sheriff deputies raided the drug pen where he and luke had purchased lsd. four people now face felony drug charges in the case. the sheriff's department sent officers to the high school today to talk to students. the superintendent also provided counselors. >> they pres

they used bean bags and a tazer to get him to stop buzz officers incident. >>> a woman rushed to the hospital after her home went up in flames. crews were called out near thunderbird and 38th street. fire crews found the woman when they searched the home. she may have been asleep when the fire started in the home. the home was not a total loss. >> this just proved a case that you really have to rely on having proper working smoke alarms, an exit plan throughout the valley. >> now, the cause of the fire is not known at this time and the woman is in stable condition. >>> did you see the fountain in fountain hills park today? it was blue to honor those in law enforcement. four fountain hills residents organized the event to honor those who lost their lives across this country. government and law enforcement attorney bill montgomery. >> and we take it personally that we honor our police and fire because they really do take very good care of our community. >> the fountain turned blue to the tune of god bless america. >>> today, people of the valley got quite the show. it was the third ann

the defense said that he wrestleled his tazer away from him. he felt fear when he at him. and a what described when he shot scott is consistent with being under a high level of stress. >> he faces 30 years in prison if convicted. >>> the driver of the bus that. >> and facing 5 charges of homicide and engangerment and driving. another charge will bed added fr a child who died two days later. he is invited. he will be in court and they believe he was speeding when he lost control of the bus and hit a tree and a house. >>> fox is teaming up with hope for the holiday, now we're going live to the pasco donation site. some of the viewers saw a broadcast can you come out until 7:00 tonight. super easy look for the landmark and old church on 19. 3214 is the address. can you see empty shelves we want to change that, we need donations and food and toys. we hope that they will look like this eventually. ministries. >> it is great to be here. it is an institution and we're knew this is getting exposure. if is enormous. 65,000 people the need for food is >> we built the 12 housing unit

and then the search came in with a tazer gun. >> the jail's special emergency response team, or sert, was called in to break up the fight. afterwards, allen was given ten days in segregation. locked down 23 hours a day with no privileges. but it's something he's grown used to. >> you do so many years in the penn, ain't nothing bothers you. >> narrator: allen's willingness to fight over his mustache is one of a seemingly endless supply of reasons others resort to violence. another fight is just broken up between three inmates in one of the general population housing units. >> the sert subdues the fighters and starts the investigation. the aggressors appear to be guadalupe. neither man shows any sign of injury. victor sanchez will require medical attention. >> his obvious injuries are a black eye and a cut on the back of his head. sergeant tucker now takes over from sert in finding out what happened. >> i saw you swinging at him. you both had him cornered. you want to stand there and lie to me some more? >> right, there was a lock down for nothing. what did you hit him with? >> my hand.

he said the incident escalated, that scott tried to wrestle the tazer away and he fired as scott ran away. >> did it result in his death? >> yes. >> filled with ill will for a depraved heart of malice? >> no, i was not. >> slager held back tears several times, especially talking about the impact on his family and scott's family. late today the defense rested its case. if convicted he could get 30 years to life in prison. >>> a tulsa police officer that this year will stand trial for second-degree murder. shelby claims she feared for her life when she shot crutcher. prosecutors say the actions were unreasonable because he wasn't armed or combative. >>> >. a nationwide effort is underway to keep cell phones out of prisons, including here in north carolina. since 2005 thousands of phones have been in a letter directors of prisons all over the country are asking the fcc to bend regulations allowing them to jam or block cell signals around a prison. >>> investigators believe an electrical problem was to blame for a deadly dorm fire in turkey. of the 12 that died, 11 were teenaged students

they used bean bags and a tazer to get him to stop buzz officers say they were not effective. no officer injured in the incident. >>> a woman rushed to the hospital after her home went up in flames. crews were called out near they searched the home. she may have been asleep when the fire started in the home. the home was not a total loss. >> this just proved a case that you really have to rely on having proper working smoke alarms, an exit plan throughout the valley. >> now, the cause of the fire is not known at this time and the woman is in stable condition. >>> did you see the fountain in fountain hills park t it was blue to honor those in law enforcement. four fountain hills residents organized the event to honor those who lost their lives across this country. government and law enforcement officials were there, including attorney bill montgomery. >> and we take it personally that we honor our police and fire because they really do take >> the fountain turned blue to the tune of god bless america. >>> today, people of the valley got quite the show. it was the third annual a

these are the tazers. >> this is the man in charge of getting the body camera program up and runninge. >> they placed them on a clip like this on their shirt. you press the button in the center twice. simple operation. you will hear two deeps and the situation is filmed from beginning to end. >> the cameras don't stay on for an eight-hour shift? >> no, theyor per job. >> do they have to announce they are recording? >> we enter someone's house where an expectation of privacy is key, we announce we have a camera. if you are outside, there is no reasonable expectation of privacy and you can and will be filmed. >> because the policies are in infancy, we are not allowed to show body camera footage in action, but they made an exception so we can see the quality of the video. >> put it in the docking station and it loads to the cloud. are you ready? this is the video they see. >> the cameras don't stay on for an eight-hour shift? >> we are talking we have the room and you in the video. pretty clear audio. >> this is the future for philadelphia and much of the country. >> yes, it is. of the

school resource officers were able to back him the corner and use a tazer before taking him into custody. other students say it was terrifying.... " "i just saw like three kids running toward the office with a bunch of blood. one of them was stabbed in the head, and the other was stabbed around the neck or something. and, that's all i saw class. it was awful. honestly." " all of the victims are expected to be okay. school officials say the suspect had no record of discipline problems... and was a straight a student. the families of victim's of the sandy hook elementary school shooting... are appealing the court's decision to overturn their lawsuit against gun manufacturer- remington arms. " : "i am bringing this appeal for our dead son dylan, who never stood a chance, as he stared down the barrel of a li weapon. dylan, who was shot at least 5 times.we're not really sure because of the horrific injuries he sustained " the families sued remington arms, the parent company of bushmaster firearms, claiming the company knew its ar-15 was a military weapon and too dangerous to be sold to civili