Officials say blizzard-like conditions and fading light could make it challenging for investigators to go through site of deadly Port Colborne, Ontario, house fire - CP 24

Investigators have found that instituting combination antiretroviral treatment at the earliest stages of HIV infection may allow the generation of functional CD8 'killer' T cells and preservation of the CD4 helper T cells that are the virus's primary target.

A New Jersey man allegedly sought to help the terror group Hamas and threatened to bomb Trump Tower in New York City as well as "shoot everybody" at a pro-Israel demonstration, federal investigators alleged.

Lawyers who investigated how a racist photo appeared on Virginia Gov. Ralph Northam's 1984 medical school yearbook page say he initially apologized to for being in the picture out of an abundance of caution, but he didn't believe he was in the photo. Investigators on behalf of Eastern Virginia Medical School said Wednesday they couldn't "conclusively determine" the identities of either person in the 35-year-old photo.

A majority of Americans feel they have heard enough about the Mueller report, while over one-third wants to hear more, according to a new CBS News poll out Wednesday. Most say President Trump should cooperate with congressional investigators, but more than half want Democrats to drop the Russia matter and move on to other issues. CBSN's "Red and Blue" dives into the latest numbers.

Can a videotape left behind by a dead soldier help real-life NCIS investigators solve a double murder?

An inaugural ride on a new line meant to speed train service in Washington state in 2017 that turned deadly when an Amtrak train derailed was part of a resounding multi-agency failure, federal investigators revealed Tuesday.

The law firm investigating the origin and content of a racist picture of a man in blackface standing next to someone in Ku Klux Klan garb -- a photo that was placed on Virginia Gov. Ralph Northam's medical school yearbook page -- said Wednesday that investigators were unable to determine whether the governor is seen in the photo or has any other connection to it.