在其中一次地震前的几天或几周最致命的校园枪击案在美国历史上，被指控的罗柏小学枪手似乎向他在网上遇到的许多年轻人发送了令人不安的信息，包括关于校园暴力意图的说法，留下了一系列似乎未被注意的数字红旗。

十几个人告诉美国广播公司新闻，18岁的被告枪手萨尔瓦多·拉莫斯在大屠杀前几天通过多个社交媒体平台向他们发送了有关信息。

据美国广播公司新闻频道(ABC News)报道，在大屠杀发生前几个小时，拉莫斯据称在Instagram上给一名年轻女孩发信息说，他有一个秘密想告诉她，执法部门消息人士称，这些信息的内容是正在进行的枪击案调查的一部分。据称，拉莫斯几天前在一张两把枪的照片上给这个女孩贴了标签。

据一名用户称，在枪击发生当天早上发出的另一条信息中，拉莫斯发送了一张躺在床上的枪的照片，该用户与ABC新闻分享了嫌疑人据称账户的直接信息。她回答说，问，“你为什么给我发一张枪的照片。”

据称，在袭击发生前，被指控的枪手向一名德国的年轻女孩根据美国广播公司新闻频道(ABC News)看到的消息，他在社交媒体应用Yubo上遇到了谁，详细描述了他开枪打死了他的祖母，并前往学校寻找下一个目标。

在接受美国广播公司新闻采访时，这个要求被称为“茜茜”的年轻女孩说，自从枪击事件发生后，她一直在问自己，“如果我能改变结果，如果我能改变他的想法，不这样做，会怎么样?”茜茜说，她后悔没有把拉莫斯为什么“在5月16日生日那天买了两支步枪，并订购了一个装满弹药的包裹”联系在一起。

2022年5月24日，在德克萨斯州乌瓦尔迪，州警守卫该地区时，在罗布小学外可以看到治安官犯罪现场录像带。

艾莉森晚餐/法新社

Cece说，事后看来，还有其他警告信号——包括拉莫斯在Yubo上问其他人是否想出名。

Instagram上的另一名用户向ABC News展示了据称来自拉莫斯的信息，称他首选的武器是AR-15，这是德克萨斯州枪击案中使用的攻击武器。

据美国广播公司新闻(ABC News)查阅的消息显示，枪击事件发生前一周，拉莫斯给另一名Yubo用户发了一条消息，告诉她如果她在Instagram上追随他，他会让她出名。

另一名年轻用户告诉ABC新闻，拉莫斯在大屠杀的前一天在Yubo上，他暗示第二天会发生一些事情。

这位住在希腊要求匿名的用户告诉ABC新闻，她试图向Yubo举报Ramos，但“不管他被举报多少次...他还是会回来的。”

当被美国广播公司新闻(ABC News)问及拉莫斯的账户是否已被标记时，Yubo的一名发言人表示，“在现阶段，除了执法部门的直接要求，我们在法律上不能发布任何具体的用户信息。”

优博发言人表示，该公司“可以证实，我们正在调查一个已被该平台封禁的账户”。“我们对这一无法形容的损失深感悲痛，并全力配合执法部门的调查。”

据称，在枪击发生前几天，拉莫斯给大多数用户发了信息，他们告诉美国广播公司新闻，他们最初是在Yubo上联系的，Yubo被描述为青少年的约会应用程序。他交流的用户以高中年龄段为主。大多数人表示，他们没有报告这些信息，也没有认真对待。

美国广播公司新闻频道(ABC News)看到的信息显示，在致命袭击发生前的几周，拉莫斯似乎还努力会见了他在Yubo上亲自见过的一些用户。

“他应该和我见面的，”一个年轻女孩在表示宽慰之前告诉ABC新闻。“我只是从来没有回过他短信。”

该用户向美国广播公司展示了据称显示拉莫斯计划在4月下旬与她会面的新闻信息。

另一名微博用户告诉美国广播公司新闻:“他通常会追随那些他认为有魅力的女孩。”。"并要求与他们会面。"

Accused Texas gunman sent concerning messages to over a dozen people in days before shooting

In the days and weeks before one of thedeadliest school shootingsin U.S. history, the accused Robb Elementary gunman appears to have sent disturbing messages -- including claims about intentions of violence at school -- to numerous young people he met online, leaving a trail of digital red flags that appears to have gone unnoticed.

Over a dozen people tell ABC News that the accused gunman, 18-year-old Salvador Ramos, sent them concerning messages, across multiple social media platforms, in the days leading up to the massacre.

Hours before the massacre, Ramos allegedly messaged a young girl on Instagram saying that he had a secret he wanted to tell her, according to messages reviewed by ABC News, the contents of which law enforcement sources say are part of the ongoing investigation into the shooting. Ramos had allegedly tagged the girl in a photo of two guns days earlier.

In another message allegedly sent the morning of the shooting, Ramos sent a photo of a gun lying on a bed, according to a user who shared direct messages from the suspect's alleged account with ABC News. She replied, asking, "Why'd u send me a pic of a gun."

And moments before the attack, the accused gunman allegedly sent a string of messages to ayoung girl in Germanywho he had met on the social media app Yubo, detailing that he had shot his grandmother and was heading to the school for his next target, according to messages reviewed by ABC News.

In an interview with ABC News, the young girl, who asked to be referred to as "Cece," said that since the shooting she has been asking herself, "What if I could change the outcome, what if I could change his mind to not do this?" Cece said she regretted not putting together why Ramos had "bought two rifles on his birthday, May 16, and ordered a package full with ammunitions."

Cece said that, in hindsight, there were also other warning signs -- including the fact that Ramos asked others on Yubo if they wanted to be famous.

Another user on Instagram showed ABC News alleged messages from Ramos saying his preferred weapon is the AR-15, which was the assault weapon used in the Texas shooting.

A week before the shooting, Ramos sent another Yubo user a message telling her he would make her famous if she followed him back on Instagram, according to messages reviewed by ABC News.

And another young user told ABC News that the Ramos was on Yubo the day before the massacre and that he implied that something would occur the next day.

That user, who lives in Greece and asked to remain anonymous, told ABC News she tried to report Ramos to Yubo -- but that "regardless of how many times he was reported ... he would still come back."

A spokesperson for Yubo, when asked by ABC News if Ramos' account had been flagged, said that "at this stage, we are not legally able to release any specific user information outside of direct requests from law enforcement."

The company "can confirm that we are investigating an account that has since been banned from the platform" the Yubo spokesperson said. "We are deeply saddened by this unspeakable loss and are fully cooperating with law enforcement on their investigation."

The majority of the users who Ramos allegedly messaged in the days leading up to the shooting told ABC News that they were first contacted by him on Yubo, which has been described as a dating app for teens. The users he communicated with are predominantly high-school age. Most said they did not report the messages and didn't take them seriously.

In the weeks leading up to the deadly attack, Ramos also appeared to have made efforts to meet some of the users he had met on Yubo in person, according to messages shown to ABC News.

"He was supposed to meet up with me," a young girl told ABC News before expressing relief. "I just never really texted him back."

The user showed ABC News messages allegedly showing that Ramos had planned to meet up with her in late April.

"He would mostly follow girls who he thought were attractive," another Yubo user told ABC News. "And asked to meet up with them."