♪ this is "nightline." >> tonight, campus rampage. three dead, five wounded, after a gunman opened fire at michigan state university. >> run! >> the students scrambling for safety. >> oh my god! >> that's when he came in our class, shot four more times. >> as we learn new details about the lives lost. and the alert from police that helped bring the mass shooting to an end. and crisis of command. inside the investigation into what went wrong during the uvalde massacre with rarely seen video. >> he's in the class! >> the 911 call from a 10-year-old survivor that her parents want the world to hear. >> i'm in classroom 112 -- please hurry. >> amid calls for accountability. >> if the cops would have gone

in when they should have, then my daughter would still be with me today. >> could some authorities face criminal charges? plus eight rules of love. he's a former monk turned life coach with 50 million social media followers. a guru to the stars who officiated ben and jen's wedding. what wisdom does jay shetty have this valentine's day? >> i think for everyone who's felt they've lost themselves in a relationship, you can find yourself in solitude. llo 12 hou. 12 hours!! not coughing? hashtag still not coughing?! mucinex dm gives you 12 hours of relief from chest congestion and any type of cough, day or night. mucinex dm. it's comeback season. wondering what actually goes into your multivitamin? at new chapter, its' innovation, organic ingredients, and fermentation. fermentation? yes. formulated to help you body really truly absorb the natural goodness.

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♪ thanks for joining us. there is heartache tonight on the campus of michigan state university where the lives of three college students are being remembered after they died in yet another mass shooting in america. and now we're learning new details about the tip that led police to the gunman. here's abc's alex perez. >> reporter: that gunman's rampage unleashing horror and chaos on the campus of michigan state university. tonight we're learning more about the three msu students killed -- junior arielle diamond anderson, sophomore brian fraser, junior alexandria verner. the first 911 calls at 8:18 p.m.

for shots fired on campus. >> i have an active shooter at 509 east circle drive on msu's campus -- >> reporter: authorities identifying the gunman as 43-year-old anthony duane mcrae. they say he died of a self-inflicted gunshot wound after an intense hours-long manhunt. student dominic was inside the building. >> i heard the gunshot. it must have been right outside of the door. because my ears were ringing from it. that's when he came in our class, shot four more times. >> reporter: police say two of the victims were shot dead inside that building before the suspect moved to the nearby student union where authorities say he killed a third student. five other students shot, hospitalized in critical condition tonight. overnight students barricading themselves inside the library with tables and chairs. >> oh my god. >> everyone's freaked out, everyone's terrified. >> reporter: after police released these surveillance images showing mcrae wearing distinctive red shoes. they were able to act on a tip

within minutes. mcrae found in lansing, taking his own life as police moved in. the fbi saying mcrae suffered from mental health issues and those three victims -- frasier, a sophomore who was president of his fraternity. verner described as an athlete who exemplified kindness. anderson, whose family says she wanted to be a surgeon. >> you want to talk about a little angel, her name is arielle. she helps everybody, anybody, at any time. >> our thanks to alex. today also marks exactly five years since the school shooting in parkland, florida, and there have been more than 2,700 mass shootings in this country ever since. with over 14,000 victims. a seemingly endless tide of sorrow which includes the massacre at robb elementary school in uvalde, texas, last may. the investigation into how law enforcement responded that day

is ongoing and may lead to criminal charges. it's also the focus of a new special in our ongoing series "uvalde 365." abc's john quinones has the preview. >> there were a lot of failures that day. >> 19 children killed along with two teachers. the second-deadliest school shooting in u.s. history. >> we expect our police officers to run toward the danger. and we now know that's not what happened. >> it was treated as a barricaded subject, and instead it should have been treated as an active shooter. that's plain and simple. >> when it came to the moment of truth, they failed. >> he's in the class. >> the last thing you expect to hear is that 77 minutes went by before anyone reached that

classroom. you had children calling on their cell phone, asking for help. >> i'm in classroom 112. please hurry. there's a lot of dead bodies. please send help. i don't want to die. >> reporter: the horrific events at robb elementary in uvalde, texas, stunned a community and the nation. as the world watched in those first hours and days after the shooting, officials made a series of misstatements and inaccuracies. >> they showed amazing courage by running toward gunfire. >> they did contain in the classroom, they put the tactical staff together in a very orderly way, and of course breached. >> reporter: but governor abbott and the department of public safety director steve mccraw eventually said they were misled by local officials. >> the idea that this was an heroic and well-done and

effective and efficient operation was not the case. when we determined it was not the case, we reported otherwise. >> it was time to deliver answers to the people of uvalde. >> reporter: eva guzman, a former justice of the texas supreme court, served on the investigative committee formed because of concern that the public was not getting a true account of events at robb. the committee points to diaz street where the gunman lived, blocks away from robb elementary, with his grandparents. because less than 10 minutes before the attacker crashed a truck in the ravine outside the school, he shot his own grandmother at home. >> diaz street will forever, i think, remain embedded in the minds of uvalde citizens as the place where this tragedy began. >> reporter: the attacker messages an acquaintance, "i just shot my grandma in her head, and i'ma go shoot up a

elementary school right now." an online acquaintance in germany responds, "cool." he then steals his grandmother's truck and the grandmother seeks help. >> her reaction was not to call 911, it was to run across the street to a neighbor. >> reporter: in fact, a 911 call from diaz street doesn't come in until nearly 15 minutes after the attacker shot his grandmother, and when he's already inside the school. >> any time there is criminal activity this close to a school, there ought to be an effort to immediately notify the school. >> reporter: but because of that delay, neither police nor robb elementary knew about that shooting before the gunman arrived at the school. >> those seven to nine minutes could have made a difference. we'll never know. it will always be a "what if?"

>> reporter: the committee raised questions about the law enforcement response to diaz street and why uvalde county sheriff rubin orosco appeared on this scene, stayed, and was delayed in arriving to the robb elementary attack. inside the school, it turns out there were distinct opportunities to breach the classroom that were missed. >> was certain i heard a reload. i heard that one time. i don't know if there was a second. >> a law enforcement officer hears a suspect reloading their firearm? it should say two things to that officer. one, that the threat is not over. two, that may be an opportunity to immediately breach and engage. >> reporter: and there were other failures and missteps. time spent hunting for keys to the classroom door that had been reported broken and never fixed. it could have been opened without a key. >> we know that if there had not been these systemic failures,

that if one person had responded differently at any moment, maybe the outcome could have been different. >> reporter: less than 24 hours after the attack, during an interview with investigators, chief pete arredondo explains his decisions. >> i had students around there that weren't an immediate threat besides the ones i know were an immediate threat. the preservation of life around everything around him, i felt was priority. because i know there's probably victims in there, and with the shots i heard, i know it's probably several deceased, i know these weren't. >> in law enforcement you can't assume they're not going to survive, you have to assume they could have survived if you get in there immediately and address the threat. >> reporter: in total, 376 law enforcement officers responded to the attack on robb elementary that day. >> we failed to prevent it from happening. i say failed. i said we. i said the law enforcement community.

because collectively, we did. >> reporter: the texas rangers under steve mccraw at the texas department of public safety have completed their initial honing in on culpability and possible criminal charges. a final version of the report will go to the uvalde county district attorney. >> you have one chance to get this right. and it is very important for the decision to prosecute to be based on all of the evidence. >> reporter: the investigation is examining the actions of every law enforcement officer who responded that day. and sources tell abc news the focus is on the law enforcement leadership who were there that day and the decisions made in the critical first moments. >> based on that information, we can make an intelligent decision about what crimes may have been committed. >> reporter: it may take even more months to learn whether any law enforcement officials might happed on ma24th.rimes for what

but the top lawman in texas says it's a real possibility. >> my belief is there's possible criminal culpability. certainly malfeasance committed that particular day. from our standpoint, looking at every officer, looking at internally at our own officers, what did they know, when did they hear, when did they arrive, what did they do at that point in time? >> reporter: alongside many of the other victims' families, jackie cazares' family is channeling their grief, pushing for stronger gun control laws. they were recently briefed on the autopsy report for their daughter. they say from what they know, it appears to show that jackie was shot in one of the gunman's final barrage of shots before the breach. while all those officers were s. >> becwo bled out quickly. if she was shot at the very

beginning, then she wouldn't have had a pulse at the end of the 77 minutes. and she did, she was still alive. >> what does that tell you? >> so that for sure tells me that if the cops would have gone in when they should have, then my daughter would still be here with me today. >> our thanks to jon and the entire team. "crisis of command" is streaming on hulu. for an extended cut and a complete look at our "uvalde 365" coverage, go to abcnews.com. from the monastery to the mainstream. go-to life coach to the stars, jay shetty, sharing his wisdom this valentine's day. >> this is so sweet. >> you're ruining my hair. >> come here, let's talk. >> you're ruining my hair. >> let's talk!

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♪ he's just 35 years old but best-selling author jay shetty's lessons in life are connecting with people of all ages. what does a former monk have to say about love and relationships? i recently sat down with him to find out. jay, thanks so much for joining us. >> thank you so much for having me, i'm grateful to be here. >> i'm grateful to have your wisdom. you have 50 million followers across social media platforms, and you do it by channeling sort of monastic wisdom that you gained from being a monk.

now, just in time for valentine's day, you have this book. "8 rules of love." people immediately think romantic love. for you, love starts with self-love? >> yeah. >> how does that draw from your tradition? >> my time as a monk was spent in solitude. it was spent spending time with yourself, getting to understand your own personality, your own values, the things that matter to you most. and i find what's really interesting is that often we get into relationships without having that understanding, and now all of a sudden we're scrambling. or what happens is we lose ourself in a relationship. and i think for anyone who's ever felt that they've lost themselves in a relationship, you can find yourself in solitude. >> and you talk about moving from loneliness to solitude and understanding the difference? >> paul tillich said that there's two words in the english language for being alone, but we only use one of them, "lonely." loneliness is the weakness, the sadness of being alone. he said there's another word, that word is "solitude." solitude is the strength, or in his words, the glory of being alone.

what that means is, can we find a space with ourselves where we enjoy our own company, where we feel a sense of self-confidence, and then take that out into the world? >> you have eight rules. rule number 4, let your partner be your guide. i have a clip of you and your wife having a little fun. she's trying to get you to pay attention to her, you're playing video games, let's take a look. >> he's so fun. having a fantastic day today. >> i'm actually playing the game. >> oh, it's so nice, it's amazing. >> i'm going to leave this game. >> i thought you love me more than football? >> i do. >> oh, this is so sweet. >> "i know you love me more than football," that's excellent. you've been married seven years. >> yes. >> this is clearly playful. in what way has your partner been your guide and vice versa? >> so many of us don't recognize how much our partner is someone we can grow with. i think we think of them as people who make us happy or make us laugh. when you grow together, you learn together, you overcome challenges together, you learn amazing things from each other and for each other. >> this is in many ways a how-to manual about learning how to fight.

whether fighting with your partner or a colleague or a family member. how is it that we can fight productively? >> one of the things i realized early on with my wife is everyone has different fight styles. the challenge is, if you're fighting mma and the other person's fighting wrestling, you don't understand each other. it doesn't work. >> right. >> and so i discovered these three fight styles. i'm a venter. venting means, i want to talk about it, i want to taught it right now. my wife's a hider. she likes to have space, she wants to go away, think about it, she wants to digest. and the third is an exploder. someone who needs to talk about their emotions. none of these are good or bad, it's just that we have different ways of dealing with stress. >> speaking of gurus, you are guru to many high-profile celebrities. you were the officiant in ben and jen's wedding. you've talked to shawn mendes, among others. how do you get these folks to talk about their innermost feelings? >> i've tried to create a safe space where people have grace. to not feel judged, not feel criticized.

i feel that safe space starts within. we create safe space with ourselves, to be vulnerable with ourselves, to realize we're human, we make mistakes all time. we all have challenges, we all have floors. when you give yourself space and grace, you extend that to others. >> you can't have love without loss. one of the rules is about breaking up. you talk about abuse is a deal breaker, infidelity, maybe. how do you define what's tolerable and not tolerable? >> that's exactly the decision only the individual can make. it's not my job to tell everyone whether they should leave or stay. it's to give you the process of, if you are going to stay, it's going to require understanding. it's going to require acceptance. it may even require forgiveness. in the book i lay out the steps you should follow in thinking about it, but i'm not going to tell you what to do. i'm going to share with you how to reflect on it. >> final thought for us, if you can. you became a monk at 21. when you look around the world, see suffering and strife, what would you say to folks feeling

despair? >> the more we get involved in trying to be part of the solution, the less the problem feels scary. even in our tiny, small ways, if we can get activated in our communities and our families and start having a positive impact, even on the few people around us, if we can start there, if we can change that, we'll start to see that the solution is far more in reach. >> thank you so much for channeling the wisdom of the ancien in such a modern way, jay, thank you. >> thank you so much. i'm so grateful and really appreciate our time together. >> me too. coming up, a sweetheart deal just in time for valentine's day. i prep without pills. with apretude a prescription medicine used to reduce the risk of hiv without daily prep pills. with one shot every other month, you must be hiv negative to receive apretude

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♪ finally tonight, from croatia with love. time is running short, but this heart-shaped island in the adriatic sea could be the perfect valentine's day gift for your special someone. the site of beyonce's 39th birthday is for sale. at least part of it, for a mere 13 million euros. of course, we all know true love has no price tag. that's "nightline." watch all our full episodes on hulu. we'll see you right back here same time tomorrow. thanks for staying up with us. thanks for staying up with us. good night, america. ♪ ♪ ♪ ♪ ♪ you can beat it! ♪ visit youcanbeatit.org or call 833-422-4255