Claudio Manuel Neves Valente, the man accused of shooting up Brown University Saturday and then gunning down MIT professor Nuno F.G. Loureiro at his home Monday, used “sophisticated” tactics to hide his tracks as he attempted to conceal his horrid actions.

US Attorney for the District of Massachusetts Leah Foley laid it all out in a press conference Thursday night, revealing Neves Valente likely used an untraceable phone and avoided using credit cards tied to his name. He is also said to have switched the Florida license plates of his rental Nissan to unregistered license plates from Maine within 24 hours of the Brown shooting, and before he slayed Loureiro.

As for his connection to the MIT nuclear physicist, prosecutors say the pair attended the same academic program in Portugal between 1995 and 2000. Loureiro was found shot at his Brookline, Massachusetts home Monday and died Tuesday. The specific motive for murdering Loureiro remains unclear.

Nancy Grace says the double homicides of Rob Reiner and Michele Singer Reiner are a textbook example of a case that calls for the death penalty … and that could be bad news for alleged murderer Nick Reiner.

Nancy tells TMZ … this case is the classic example of when capital punishment should be applied, but that doesn’t mean it’s going to happen.

Los Angeles District Attorney Nathan Hochman mentioned the death penalty in a recent press conference, so it’s being talked about among prosecutors … but as Nancy explains, a final decision on capital punishment goes way beyond the D.A. office.

Nick is charged with murdering his parents at their Brentwood home … and he’s being held without bail and is on suicide watch as he awaits his January arraignment. He’s hired famed defense attorney Alan Jackson.

Lauren Sanchez Bezos‘ recent nuptials haven’t changed her sense of style at all … and, we’re here to prove it with a gallery of birthday hot shots!

The former television host has always dressed to impress … whether in a black cocktail dress or tiny red outfit accentuating her long legs, Lauren’s ‘fits always draw eyes.

LSB and her man Jeff Bezos love living it up on his mega-yacht … meaning it’s not unusual to see Lauren in a skimpy bikini, surrounded by clear blue ocean.

Of course, Lauren also travels all over the world … dressing with a bit more coverage in this pic, which appears to have been taken on the plains somewhere — though she still flaunted cleavage.