now, witnesses say the suspect stabbed harter, jumped back into his vehicle and took off. harter's family is now making an emotional plea to the public. >> my son, he drove 65 miles an hour because he was so frugal with his gas money. i can only imagine someone was upset because he wasn't going fast enough. is that a reason to take his life and leave him there? >> harter's mother says her one comfort is that her son did not die alone thanks to a good samaritan who tried to help him as he stumbled into traffic. >>> turning to the weather now, the extreme heat is making drought conditions even worse in the southwest. now, let's take a closer look at your forecast for this monday. >>> good morning. dry and hot conditions will continue for the southwest courtesy of this high pressure system that will create if not warmth downright hot conditions and that heat will build. very warm across texas and the center part of the country. we're looking for high fire danger starting now continuing until the latter portion of the week. dangerous cross winds blowing dust, strong winds. ong

cody harter was stabbed in the chest, stumbling across the highway before collapsing. he was pronounced dead at the scene. here tonight, abc's alex perez. >> reporter: just outside kansas city tonight, a desperate manhunt to find senior airman cody harter's killer. >> continue northbound, possible fatality, getting multiple callers. >> reporter: the missouri air national guardsman, who served in iraq and qatar, was murdered saturday night in what authorities suspect is a horrific, violent case of road rage. his heartbroken mother, calling for justice. >> let's find who did this senseless act, so that you're not sitting here when it's your child. >> reporter: 23-year-old harter was driving his chevy silverado when witnesses say he and another driver pulled over, got out of their cars and started arguing. the attacker stabbing harter and then speeding off. >> we will not stop working until we have justice in this case. >> reporter: investigators telling abc news the attacker was driving a mid-size sedan. they are now analyzing dna from the scene and collecting surveillan

they believe the argument escalated and harter was stabbed. he stumbled and then collapsed into traffic. the suspect fled in a vehicle, going north on i-470. harter's family said he owned a lawn care business and had been driving home after picking up a new mower in kansas city. police released a photo of harter's truck, a maroon 2003 chevrolet silverado. they're asking anyone who may have passed by his vehicle saturday night to call police. >> for someone to just take everything from him. they didn't even know him. >> reporter: police are trying to put together a description of the suspect's vehicle, but said they need more witnesses to step forward with information. harter's information said he was attending classes at a local university and only had one semester left until he graduated with an engineering technology degree. he also leaves behind a girlfriend he had planned to marry soon. >> just heartbreaking. >> yes. >> such a tragedy. unbelievable. >> michelle, thank you. >>> vladimir putin begins his fourth term as russian president this

the attacker stabbing harter and then speeding off. >> we will not stop working until we have justice in this case. >> reporter: investigators telling abc news the attacker was driving a mid-size sedan. they are now analyzing dna from the scene and collecting surveillance video from a ten-mile radius. and david, investigators tonight tell me they have received about 100 tips. they are actively following up on them. david? >> alex perez tonight. thank you. >>> the president of the university of florida is apologizing tonight for the, quote, aggressive way that students were treated at graduation. several students celebrating as they received their diplomas, but they were forcefully pushed off the stage. and there is new video tonight now emerging, fuming the controversy. abc's victor oquendo is in gainesville tonight. >> reporter: growing outrage tonight after students celebrating graduation were grabbed and physically shoved off the stage at the university of florida in front of family and freciends, even broadcast on the jumbotron. >> how would you describe the manner they handled yo

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cody harter was stabbed to death during a confrontation on the highway. prosecutors tonight now charging nicholas webb with murder. >>> the mystery death of a college student on spring break in mexico. andrew dorogi was found dead near train tracks in mexico city. his family reportedly says he made a panicked call to his mother before he died. the mexican government telling abc news tonight they have ruled out murder. >>> the officer saving an infant in ocala, florida. deputy jeremie nix flagged down by a mother, her 3-month-old unresponsive. deputy nix racing him to the hospital. that baby boy is expected to make a full recovery. >>> when we come back tonight, the incredible gift. what a group of coworkers have now done. it's america strong. is the fact that it's very, very tough on bacteria, yet it's very gentle on the denture itself. polident consists of 4 powerful ingredients that work together to deep clean your denture in hard to reach places. that work together and i smoked while (amanda) my i was pregnant. this is the view i had of my baby in the

nicholas webb is accused of stabbing 22-year-old cody harter over the weekend on a highway near kansas city after they allegedly fought over who was going to merge first. we've now learned that webb was convicted of murder back in 1981. he was sentenced to 35 years in prison but released after serving 15 years. >>> the new figures out this morning show gas prices have gone up 20 cents in the last month. the national average is now 2.84 a gallon, but drivers in these 10 states are already paying $3 or more. one analysis from morgan stanley warns the higher prices could wipe out a third of the benefits of the trump tax cuts threatening economic growth and the president's decision to withdraw from the iran nuclear deal and the crisis in venezuela could send oil prices higher in the coming weeks. >> hey, just in time for memorial day weekend. >>> and it is time right now for us to take a look at your friday weather. well, more than 30 million americans are bracing for severe weather from the plains to the mid-atlantic. this hail came falling down in lynchburg, virginia. in the pacific nort

a manhunt is underway in missouri for another driver. 23-year-old cody harter died saturday and left along a roadway. witnesses saw him arguing with another motorist before his death. police believe he was stabbed during the confrontation before the other driver drove away. >> the president's new lawyer on a whirlwind media blitz and rudy giuliani says it is going great. our panel with weigh in on that. plus a cruise on carnival's dream ship turned into a nightmare. >> people were standing there saying they lost everything and they were upset. >> jon: president trump's new lawyer continuing his media blitz over the weekend insisting president trump didn't say he -- he did -- despite numerous directions on the facts. >> my issue was getting up to speed on the facts. i'm halfway there. >> has the president or any member of his team suggested to michael cohen in any way the president would pardon him if he were indicted? >> jay and i have made it clear and michael's lawyers all know that obviously is not on the table and not a decision to be made now. no reason to pardon anybody now. >>

police are hoping this picture of harter's truck could lead to more tips.e fighting. facebook under fire accused of helping terrorists connect with each other. a report by the non-productivit -- recruitnew me world. one researcher says they were bombarded with pro-isis friends connections after connecting with one extremist. it is working to remove terrorist content. a 70-year-old grand mother takes matters into her own hands and shoots a man breaking into her home. maxine thompson grabbing her gun when she heard a crook shatter her window in philadelphia. >> kill him before he killed me. that's what was going through my mind. i hope i taught him and the rest of them a lesson. stay the hell out of people's house. jillian: thompson is the mother of a police officer and had never fired a gun before. the suspect sunday arrest and in the hospital. did you know tri band lady antebellum did not own the night at the playoff. messing up the national anthem before the predators took on the jets. >> through the perilous fight ♪ were so to. >> proudly. >> we watched.

the community mourning 23-year-old tony harter seen right there at his missouri funeral.s. is he now accused of stabbing harter last weekend after the two argued about a lane change. webb spent 30 years in prison for killing 15-year-old girl. pete: i'm sorry. abby: former new york assembly guilty of corruption again. sheldon silver accused of collecting $4 million from a cancer researcher and real estate developers who benefited from its clout and n. state government. he now faces 130 years in prison. the verdict comes a year after his 2015 conviction on the same charges but were thrown out. four u.s. navy sailors now being hailed as heroes for saving two teens from drowning. ina how dithe four were in florr the armed forces volleyball championship when they heard cries for help. the sailors swimming 75 yards offshore to reach two girls in the rough surf. one of them unsupportive. two of the sailors gave cpr until first responders were able to arrive. because of their help, both girls are now okay. that sun real. and our nation's oldest military vet turns 112 years old. t