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Input: Republican Sen. Marco Rubio was put on the defensive Wednesday by angry students  teachers  and parents who are demanding stronger gun-control measures after the shooting rampage that claimed 17 lives at a Florida high school.
One of those confronting the Florida senator at a CNN's "Stand Up" town hall Wednesday night was Fred Guttenberg  whose 14-year-old daughter Jaime was killed on Feb. 14 with 16 others.  Rubio  was the lone Republican at the nationally broadcast gathering after Florida's GOP Gov. Rick Scott and President Donald Trump declined invitations to appear at the event in Sunrise  Florida.
Guttenberg told  Rubio  that his comments about the shooting "and those of your president this week have been pathetically weak."
People stood up and cheered Guttenberg as he challenged  Rubio  to tell him the truth  to acknowledge that "guns were the factor in the hunting of our kids."
 Rubio  responded that the problems laid bare by the shooting rampage "cannot be solved by gun laws alone " drawing jeering whistles from the crowd.  Rubio  responded that  he  would support laws barring those 18 and under from buying such weapons  support changing the background checks system and getting rid of bump stocks.

Shooting town hall: Rubio on the defensive on gun control