The Lafayette theater shooting happened during "Trainwreck." Should Amy Schumer get involved in the gun debate now?

"Your movie -- which was so well-received, so brilliant, so you -- will now forever have this shooting attached to it."Sarah Clements, the daughter of a Sandy Hook Elementary School teacher, wrote these words to comedian Amy Schumer in an open letter posted to Medium on Friday. Schumer's movie "Trainwreck" was playing at the Grand 16 movie theater in Lafayette, La., when John Russell Houser killed two people and injured nine others with a .40 caliber handgun. The letter addressed a question Schu...