Myron De’Shawn May was a 31-year-old man who grew up in poverty, graduated from Florida State University with honors, and worked his way through law school to build a stellar career, walked into Florida State’s Strozier Library and wounded three students before he was gunned down by police.

His social media activity revealed that he believed he was a "targeted individual," the term used by people who think the government and shadowy gangs are attacking them with mind control and invisible, remote weapons.

It is unclear when May’s mental distress began. A graduate of FSU and the Texas Tech law school, he practiced law in Texas and New Mexico, where he worked as a prosecutor for the Dona Ana district attorney’s office until he abruptly quit Oct. 6.

The message was part of a flurry of emails, texts and phone calls in which the former prosecutor laid bare his torment: He believed government "stalkers" were harassing him and using a "direct energy weapon" to hurt him. He said that he had sent packages to 10 people that would "expose" what he thought was happening to him.