CNN's Martin Savidge investigates the mysterious poisoning death of a neurologist in Pittsburgh.
Dash cam video from 2008 shows the suspect in the Cleveland kidnapping case, Ariel Castro, stopped by a police officer. CNN's Martin Savidge reports.
A hidden camera investigation demonstrates how easy it is to buy guns at gun shows without giving identification. CNN's Martin Savidge explains the results of the undercover report.
Background checks are not required for private sales, but the seller is legally obligated to check the buyer's ID to verify that person is not from out-of-state.
The CNN crew that visited Tennessee, South Carolina and Georgia was able to purchase several weapons without having to prove residency or fill out paperwork, but not in every interaction with a seller. In once instance, a seller tells our producer that he got a gun "off a police officer."
The total weapon haul from the weekend was three semi-automatic handguns with extra magazines and one semi-automatic rifle with a 30-round magazine. The total spent was $2,800. No identification was given, leaving zero paper trails. The guns were turned over to CNN security to deal with.
Police are searching for two men linked to the notorious 211 gang in their investigation into who killed Tom Clements, Colorado's prisons chief. CNN's Martin Savidge reports.
Programming note: On Thursday Anderson Cooper talks with the wife of slain Colorado prisons chief Tom Clements. Tune in for the exclusive interview at 8 and 11 p.m. ET.
CNN's Martin Savidge reports on Evan Ebel, the murder suspect who shouldn't have been paroled, and should never have slipped out of reach.
Due to a clerical error, Ebel was released from prison four years before he should have been freed. He was serving time for armed robbery, and records show he was no model inmate. He threatened to harm or kill prison authorities several times.
Police believe he's behind the murder of the Colorado prisons chief. Tom Clements was gunned down at his home last month. Ebel is also suspected of killing Nathan Leon, a pizza delivery driver.
Martin Savidge shows how the FBI killed a kidnapper in Alabama to free his 5-year-old hostage from an underground bunker that contained explosive devices.
One day, Urooj Khan jumped for joy after scoring a $1 million winner on an Illinois lottery scratch ticket.
The next month, he was dead.
Investigators initially ruled Khan's manner of death natural. But after being prompted by a relative, the medical examiner's office in Cook County, Illinois, revisited the case and eventually determined there was a lethal amount of cyanide in Khan's system.
"That ... led us to issue an amended death certificate that (established) cyanide toxicity as the cause of death, and the manner of death as homicide," Chief Medical Examiner Dr. Steve Cina said Monday.
Hear about the challenges CNN's Martin Savidge faced to get an exclusive on-camera interview with internet security guru John McAfee who's on the run from the police.
In an exclusive on-camera interview, Internet tycoon John McAfee talks to CNN's Martin Savidge about running from authorities and the death of his neighbor.
CNN's Martin Savidge looks back at notable affairs that have brought down men in high political positions.
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