Police in Kansas City have launched a massive search for Lisa Irwin, a 10-month-old baby last seen when her mother put her to bed around 10:30 p.m. on Monday night. When her father came home from work at 4 a.m., the girl was gone. Police say the parents are being cooperative and there's nothing "hinky" about their story. The screen on the bedroom window had been tampered with and a neighbor saw someone walking down the street that night with a baby in a diaper.