The Washington Post HD Video Podcast

Bob's Guns is the biggest dealer in Norfolk, Va. The store also has among the highest number of guns recovered at crime scenes. Owner Robert Marcus says that he is a responsible seller despite the stats. The Post investigates this apparent paradox.

When police recover a gun at a crime scene and want to know the last known owner, they send a trace request to the ATF's National Tracing Center in Martinsburg, W. Va. The center is an ever-growing repository of guns sales data from out of business dealers from across the country.

The Firearms Examination Unit of the PG County Police (Md.) is a real-life CSI, complete with a bullet and shell recovery tank, comparative microscopes and a gun library of 1,300 crime guns. The lab's examiners were instrumental in linking the shell casings from the murder of Jerrod Falls to the Glock possessed by convicted felon Erik Dixon.

When Erik Dixon gunned down Jerrod Falls during a baby shower, his sister and mother were among those who watched in horror.

The life of a .45 caliber Glock pistol started at a gun store police have long suspected as diverting guns to criminals. Not long afterward, the gun was used to kill a man during a baby shower.

Ten years passed before the military provided Chris Lynch with proper treatment for the traumatic brain injury he incurred after he fell 26 feet from a platform during training exercises in 2000.

When an explosion created a blast wave, Lance Cpl. Jeremy Mercado sustained a traumatic brain injury even though no objects penetrated his brain.

Tim and Shannon Maxwell have worked to overcome the challenges their marriage now faces because of Tim's brain injury. Even as Tim struggles with how people see him differently after his injury, he works to help other combat-wounded soldiers.

After he sustained a traumatic brain injury in 2006, John Barnes came home with a different personality. He struggled with a drug habit and was unable to manage his finances and make good decisions. Barnes has since moved back in with his mother and now works with a life skills coach to meet his goals.

After metallic fragments from a rocket-propelled grenade penetrated his brain, Spc. Robert Warren forgot his wife was pregnant and could not remember the names of simple objects. We document four months of his recovery to see how doctors help him regain what he has lost.

As the wars in Iraq and Afghanistan go on, the number of traumatic brain injuries incurred by service members has risen dramatically. Doctors are finding that these injuries can permanently alter soldiers' personalities and forever impact their lives.

The culmination of a four-week course in civil affairs is a role-playing field exercise on Quantico Marine Base for marines before they deploy to Afghanistan. The course transforms Camp Upshur into "Upshuristan" and aims to teach marines how to interact with local populations.

The District's fashionistas descended upon Georgetown for Fashion's Night Out. Georgetown's event featured over eighty stores, restaurants and salons with extended hours, special events and promotions. Vogue's Anna Wintour dreamed up the event last year in New York to revive a fashion industry hit hard by the economy. This year, the event expanded with celebrations in cities worldwide.

In two days, Frank Cho--aided by a small army of people--created a 3D set from a line drawing for the cover shoot of The Washington Post Magazine.

Video extras from Creating "Frank Cho's World:" The creator of Liberty Meadows, which stars the curvy heroine Brandy, talks about his brand of sexual humor, animals and his career.