The gunman who killed four people in a Midtown Manhattan office tower left a suicide note that said, “study my brain please” and ended with “I’m sorry.” Sean "Diddy" Combs is asking a federal judge to let him out of jail before his October 3 sentencing, arguing that no other "john" has ever been treated like this. A violent offender is on the run in New Orleans after jail staff mistakenly released him from the same facility where ten inmates escaped in May. Drew Nelson reports.