在一个新的转折中乌瓦尔迪小学大规模枪击事件一名消息人士向ABC新闻证实，当警察在一名枪手杀死19名学生和两名教师的教室外的走廊上等了一个多小时时，没有一名警察检查教室的门是否锁好。
就在枪击事件调查取得新进展的几天前，乌瓦尔迪联合独立学区警察局局长皮特·阿雷东多(Pete Arredondo)为自己的行为进行了辩护，并声称枪手藏身的连接教室111和112之所以迟迟没有破门而入，是因为他在等待看门人拿到房门钥匙。
但监控录像显示，在拿到两间相连教室的钥匙之前，Arredondo和躲在教室外走廊上的任何其他官员都没有试图打开门。一位了解调查情况的消息人士告诉美国广播公司新闻，这意味着从据称18岁的枪手通过一扇未上锁的门进入学校到警察开枪打死他之间有77分钟。
圣安东尼奥快报是周六第一个报道Arredondo和他的团队据称从未检查教室门以确定它们是否上锁的人。
消息人士向美国广播公司证实，调查人员现在认为，所谓的枪手萨尔瓦多·拉莫斯不可能像官员最初怀疑的那样从里面锁上教室的门。消息人士称，在监控录像中，18岁的拉莫斯似乎能够从外面打开111教室的门。官员们此前曾表示，该教室通过一条短走廊与相邻的112教室相连，走廊上有一个洗手间。
在整个事件中，发生杀戮的教室门是否没有上锁仍在调查中。
在…里6月6日的采访在枪杀11名学生的枪击事件中受伤的罗布小学教师Arnulfo Reyes在ABC新闻的Amy Robach节目中说，在发生暴乱之前，他向学校的校长抱怨说，他房间111的门在安全检查时没有锁好。他说门应该保持关闭并自动上锁。
雷耶斯在采访中说，“当这种情况发生时，我会告诉我的校长，‘嘿，我又要惹麻烦了，他们会来告诉你我没锁门，但我没有这么做。’”“但是门闩卡住了。所以，这只是一个简单的解决办法。”
在6月9日出版的《德克萨斯论坛报》的一次采访中，Arredondo，这位最近宣誓成为乌瓦尔迪市议会成员的人说，他在学校走廊里花了一个多小时要求战术装备、狙击手和进入教室的钥匙。
他声称，他和多名警察在走廊上躲在教室门外40分钟，以避免被子弹击中。嫌疑人手持AR-15型步枪和数百发子弹，穿过教室门开枪。
德克萨斯州公共安全部表示，最初跑进学校与枪手对峙的三名乌瓦尔迪警察在门后被枪击，两人受了擦伤。
来自该地区多个机构的执法人员聚集在学校，并开始疏散其他教室的儿童，远离枪手藏身的两个房间。现场的视频和照片显示，孩子们被拉着穿过破碎的窗户，逃离危险地带。
Arredondo声称采访德克萨斯论坛报一个管理员终于给他带来了一个大钥匙圈，上面有几十把钥匙，但是没有一把能用。熟悉调查的消息来源称，在寻找万能钥匙时，Arredondo试着打开了附近教室一扇门上的看门人的钥匙。
当Arredondo等待钥匙和战术小组准备到达现场时，与枪手一起被困在教室的学生和教师至少打了七次绝望的911电话寻求帮助。
Arredondo告诉德克萨斯论坛报，他没有带收音机到现场，声称时间是最重要的，他想腾出双手。
“此时对我来说唯一重要的事情是拯救尽可能多的老师和孩子，”Arredondo告诉德克萨斯论坛报。
消息人士告诉ABC新闻，Arredondo不与调查枪击事件的调查人员合作。Arredondo否认他不合作。
Arredondo和参与应对致命紧急情况的警察已经来了受到严格审查随着调查的展开，视频浮出水面，显示惊慌失措的父母被警察阻止进入学校，不敢自己动手解决问题，其中包括一名被警察用电击枪电击的父亲和一名被戴上手铐的母亲。
警方调查人员和包括德克萨斯州州长格雷格·艾伯特(Greg Abbott)在内的民选领导人也受到了嘲笑，因为随着调查的展开，官方对这起暴行的叙述发生了巨大变化。
在乌瓦尔迪暴行发生后，阿博特称赞执法人员的“惊人勇气”，称如果警察没有跑向枪声并消灭枪手，事件“可能会更糟”。但一天后，得克萨斯州公共安全部南得克萨斯州地区主任维克托·埃斯卡隆(Victor Escalon)反驳了阿博特的说法，他说，当枪手(他已经开枪打伤了他的祖母)在学校前撞毁一辆卡车，并通过一扇未上锁的门进入学校大楼时，没有学校官员在校园内，他是通过攀爬围栏进入校园的。READ MORE
阿博特后来说，他在警方的反应上被误导了。
德克萨斯州公共安全部主任史蒂文·麦克劳上校最初表示，枪手用来进入学校大楼的门是由一名教师撑开的。但官员们后来表示，调查显示老师关了门，但门没有像预期的那样自动锁上。
当局说，警方对枪击事件的反应速度也发生了几次变化，从快速反应到大约40分钟，最终到特警队进入枪手所在的教室并将其击毙的77分钟。
这纽约时报报道周五，一名乌瓦尔迪警察在回应最初的枪击报告时，手持AR-15型步枪，并有机会在学校外面开枪打死枪手，但由于担心他可能会打错一枪打中一名学生，所以犹豫了。执法人员向ABC新闻证实了这一情况。
Police didn't try to open doors to Uvalde classrooms with shooter inside: Source
In a new twist in theUvalde elementary school mass shooting, a source has confirmed to ABC News that as police waited for more than an hour in a hallway outside the classrooms where a gunman killed 19 students and two teachers, none of the officers checked to see if the doors to the classrooms were locked.
The new development in the investigation of the shooting came just days after Chief Pete Arredondo of the Uvalde Consolidated Independent School District Police, the incident commander during the May 24 mass shooting at Robb Elementary School, defended his actions and claimed the delay in breaching connecting classrooms 111 and 112, where the gunman was holed up was because he was waiting for a janitor to get the key to the door.
But surveillance footage showed that neither Arredondo nor any other officers taking cover in the hallway outside the classrooms ever attempted to open the door before receiving the keys to the two connecting classrooms. That means there were 77 minutes between when the alleged 18-year-old gunman entered the school through an unlocked door and when police fatally shot him, a source with knowledge of the investigation told ABC News.
The San Antonio Express Newswas the first to report on Saturday that Arredondo and his team allegedly never check the classroom doors to determine if they were unlocked.
The sources confirmed to ABC News that investigators now believe the alleged gunman, Salvador Ramos, could not have locked the doors to the classrooms from inside as officials first suspected. In the surveillance footage, the sources said, it appears Ramos, 18, was able to open the door to classroom 111 from the outside, the source said. That classroom is connected to the adjacent classroom 112 by a short corridor where a restroom is located, officials have previously said.
Whether the doors to the classrooms where the slayings occurred were unlocked through the entire episode remains under investigation.
Ina June 6 interviewwith ABC News’ Amy Robach, Robb Elementary School teacher Arnulfo Reyes, who was wounded in the shooting that killed 11 of his students, said that prior to the rampage he complained to the school's principal that the door to his room, 111, did not latch properly during security checks. He said the door was supposed to remain shut and lock automatically.
"When that would happen, I would tell my principal, 'Hey, I'm going to get in trouble again, they're going to come and tell you that I left my door unlocked, which I didn't,'" Reyes said in the interview. "But the latch was stuck. So, it was just an easy fix."
In an interview with the Texas Tribune published June 9, Arredondo, who was recently sworn in as a Uvalde City Council member, said he spent more than an hour in the school hallway calling for tactical gear, a sniper and keys to get inside the classroom.
He claimed he and multiple officers with him in the hallway took cover away from the classroom doors for 40 minutes to avoid being struck by bullets the suspect, armed with an AR-15 style rifle and hundreds of rounds of ammunition, fired through the door.
The Texas Department of Public Safety said three Uvalde police officers who initially ran into the school to confront the gunman were fired on through the door and two suffered graze wounds.
Law enforcement officers from multiple agencies in the area converged on the school and began evacuating children from other classrooms and away from the two rooms where the gunman was holed up. Video and photos from the scene, showed children being pulled through broken windows and running out of harm's way.
Arredondo claimed in theinterview with the Texas Tribunethat a custodian finally brought him a large key ring with dozens of the keys attached but none worked. Sources familiar with the investigation claimed that while searching for a master key, Arredondo tried the janitor's keys on a door out of harm's way on a nearby classroom.
While Arredondo waited for the keys and a tactical team to gear up and reach the scene, students and teachers trapped in the classrooms with the gunman made at least seven desperate 911 calls asking for help.
Arredondo told the Texas Tribune that he didn't bring his radios with him to the scene, claiming time was of the essence and that he wanted to have his hands free.
"The only thing that was important to me at this time was to save as many teachers and children as possible," Arredondo told the Texas Tribune.
Sources told ABC News that Arredondo is not cooperating with investigators probing the shooting. Arredondo has denied he has been uncooperative.
Arredondo and police involved in the response to the deadly emergency have comeunder intense scrutinyas the investigation has unfolded and video surfaced showing panicked parents being held back by police officers from entering the school to take matters into their own hands, including a father who officers deployed a stun gun on and a mother who was handcuffed.
Police investigators and elected leaders, including Texas Gov. Greg Abbott, have also been the subject of scorn over how the official narrative of the rampage has dramatically changed as the investigation has unfolded.
In the immediate aftermath of the Uvalde rampage, Abbott praised the "amazing courage" of law enforcement, saying the incident "could have been worse" if the officers hadn't run toward the gunfire and eliminated the shooter. But one day later, Victor Escalon, the South Texas regional director of the Texas Department of Public Safety, contradicted Abbott's statement, saying, no schools officer was at the campus when the gunman, who had already shot and wounded his grandmother, crashed a truck in front of the school and entered the school buildings unabated through an unlocked door after getting onto campus by climbing a fence
Abbott later said he was misled on the police response.
Col. Steven McCraw, director of the Texas Department of Public Safety, initially said the door the gunman used to access the school building was left propped open by a teacher. But officials later said the investigation showed the teacher closed the door, but the door did not automatically lock as it was supposed to.
The timeline on how quickly police responded to the shooting has also changed several times, from a rapid response to about 40 minutes, to eventually 77 minutes before a SWAT team entered the classroom where the shooter was located and killed him, authorities said.
TheNew York Times reportedon Friday that a Uvalde police officer responding to initial reports of a shooting was armed with an AR-15 style rifle and had an opportunity to shoot the gunman outside the school but hesitated out of concern he could have hit a student with an errant shot. Law enforcement sources have confirmed that scenario to ABC News.
