"Half truth, You conveniently forgot to include suicide by firearm."

He was talking about homicide, the killing of one person by another.  Suicide isn't homicide.  I can't speak for him, but I would imagine he's comparing homicides and drunk driving since they both pose risks to the general public.       

But, if you want to look at all firearm-related deaths (suicides, homicides, accidents), then we should compare those to all alcohol-related deaths (alcohol-induced health problems, drunk driving, non-vehicle accidents while drunk, etc.).  According to the CDC there are about 36,000 firearm-related deaths, and an average of about 88,000 alcohol-attributable deaths each year.