welcome back to velshi & rhule. we ve got breaking news in the las vegas shooting investigation. multiple senior law enforcement officials say the gunman steven paddock researched possible locations in boston and chicago. he reportedly booked a hotel room overlooking the lollapalooza festival in chicago but didn t show up for the reservation back in august. three u.s. army special forces soldiers were killed and two others wounded in an ambush in the african country of nooignooig niger. militants operating out of mali carried out the attack, it s believed. and today is the deadline for more than 150,000 so-called d.r.e.a.m.ers. undocumented immigrants brought to the u.s. as children to reapply for protection from deportation. approximately 154,000 people