Piers Morgan hosted a debate on his CNN show tonight over gun control in the United States in the context of last Friday’s shootings in Aurora, Colorado. The debate ended up devolving into a shouting match between Morgan and anti-gun control academic John Lott Jr., with Morgan at one point yelling “You’re not giving me a sensible answer!” and fellow guest Alan Dershowitz repeatedly scolding Lott for his “junk science.”

Morgan kept grilling Lott over his premise that gun control will not help stem violence, and that having more guns out there will lead to less crime. Lott tried to rebut the points Dershowitz and Morgan were making, but Morgan repeatedly interrupted him to get Lott to answer his questions and telling Lott that he was spouting “nonsense.”

Lott tried to explain the difference between semi-automatic and automatic weapons to Morgan, while Morgan and Dershowitz argued that civilians should not be allowed access to guns with that speed and ammo capacity. Another point Lott tried to make during the interview was that while England has less gun deaths per year than the United States, they had much less before they implemented gun control.

Towards the end of the interview, when Morgan suggested that increased gun control in the United States would be a sensible proposal, Lott told Morgan, “You’re going to kill more people with your policies.”