Yes, it speaks that an adult left a loaded firearm unsupervised in a house with a 5 and 2 year old and a horrible tragedy happened.
I've also seen many stories about small kids running their siblings over with cars and the keys weren't even in some of them. Lets control car keys and cars.
And tragic back yard drowning deaths in 5 gallon buckets. Lets control buckets.
And dogs of all sizes and breeds mauling children, so lets control dogs.
And kids getting crushed by large TVs falling on them, so lets control large TVs.
This has absolutely nothing to do with gun control (and I favor background checks for all firearms sales and transfers). Its just a horrible, horrible tragedy that a family is going to have to live with for the rest of their lives. Every day in this country children are injured and/or killed in terrible household accidents that could be prevented with a little common sense and safety practices. This is not an incident to further one's agenda for gun control. Just my 2 cents.