Joe Dziemianowicz

“The caller reported a male covered in blood,” a retired Las Vegas detective said of the 911 call placed after aspiring hip-hop artist Michael Portaro was gunned down.

After Jonathan Hoffman, 17, dialed 911 to report his grandma, 74, shot him, police found him face down in gym shorts and socks, with multiple gunshot wounds and a faint pulse.

A tip that "investigators hope for and pray for" led police to Las Vegas showgirl Deborah Flores Narvaez's brutal killer. 

Shocking homicides have turned Las Vegas desert landscapes into burial grounds. Sin City Murders covers some of these cases, and more.

The new Oxygen series Sin City Murders highlights homicides that have left indelible marks on the Strip and other Las Vegas areas. 

Hatred between two families and a business dispute leads to quadruple homicide and arson in Los Angeles.

The Tejano singer's death is revisited in the Oxygen limited series Selena & Yolanda: The Secrets Between Them.

A bloody shotgun, bruised shoulder, and a $100,000 family inheritance lead investigators to a brutal murderer.

Driven by a family feud — and greed — Edward Locascio was the brains behind the grisly murder of his wife.

Detectives turned up a contentious history between murder victim Chris Northam and his son who shared his name and entrepreneurial venture.