. >> in 1992, robert glenn was sentenced to three years for auto theft. when we met him 15 years later at california state prison corcoran, he was still in prison. and two of his former cellmates were six feet under. glenn murdered the first one while he was still in county jail. >> i slashed his throat repeatedly. blood was everywhere. and then another inmate passed me a shank. probably about that long with a handle on it. i just started stabbing him. stabbed him about over 100 times, in the back, sides, neck. he was crying, telling me to stop. begging for me to stop. he was still alive through all of it. >> you're smiling. >> i like that. that was one of my favorite ones right there. >> he surprised me in that he had a gleefulness about him as he was discussing the violence he had committed in prison. he had this proud little smile as he was telling us these very disturbing and violent acts. >> after murdering his cellmate in jail, glenn came to prison where his predatory behavior escalated. >> while i was there for about a year, i got about 14 assault

. >> was made to the government-issued phone of irs criminal investigation special agent robert glenn. they come from people claiming you owe back taxes and threatening arrest if you don't make an immediate payment by a prepaid debit card, itunes card or wire transfer, things legitimate irs workers never do. i received one of the messages as well and called back the springfield illinois number. >> your call cannot be completed as dialed. >> it no longer works. >> if you receive a call, immediately hang up. don't engage the person on the phone. >> reporter: it's long said the irs doesn't call to demand back taxes. this spring a change that could cause confusion. the agency expected to start using private collectors for certain tax debts. if they call, officials say, there won't be threats, immediate payment demands, and it won't come from out of the blue. >> generally, if somebody owes money, the first communication will be some type of correspondence via mail. >> ted greenberg, nbc 10 news. >>> now your nbc 10 first alert weather. >> let's talk temperatures out there. neighborhood tem

glenn hall. yesterday, "the wall street journal" revealed this information that john roberts was just talking about which is that michael flynn's lawyer says he has a story to tell, but he might be wanting immunity in order to tell it. what else do you know? >> it's important that we all know that asking for immunity is not an admission of guilt or concern of guilt. it's something you would want to do in a very politicized investigation like this. the other things that we know, the idea that has a story to tell, we don't know much of what that story will be revealed, but he has been at the center of this whole probe. >> dana: it is also possible that the story he has to tell has nothing to do with the other legal troubles that the former nsa director finds himself in regarding not registering as a foreign agents when he was working and receiving money from turkey. is that within the scope of this? >> there's no question that the committee would want answers to those kinds of issues and finding out more about what kinds of connections he had, what kind of payments he had, that all goes back to the h

while serving four years at is now known the glenn mills school a facility for juvenile delinquent law convicted of murder of 33-year-old house matron vita row robertbbed 47 times with an ice pick in the cottage where she lived with her husband who taught farming at the school. williams was doing chores unsupervised at the time of the murder but according to records, he quickly confessed to the crime. he was arrested october 10th of 1930 and executed june 8th, 1931. just 243 days later. >> why was this kid, um, kind of judicially lynched? >> reporter: but now an unlikely stranger has come to clear williams name. >> originally my goal was to find out why would he do this? and i thought, you know, maybe there's a mental illness issue. maybe somebody put him up to it. >> now you think he's totally innocent. >> positively. not a doubt in my mind. >> reporter: sam lemon has been researching this case for 30 years his great grandfather william ridley was the attorney who originally represented williams during his murder tri trial. >> the image of him sitting in had electric chair with a hood over his head i can't get that out of my mind. like that haunts