lab kills dachsund

Question
I just read where another question was asked, "I have a 100 pound 20 month old Male lab that has been fixed but he is the Alfa male in our family of 7 dogs  we had a male boston and a male poodle the rest females,all our pets are fixed. He attacked the poodle the other day for no reason, he got him in a corner and bit him and shook him like a rag doll, after the attack the Lab ran and hid."
We have a 120 4 year old yellow lab that was "raised" by our little female dachsund.  The other morning, I went to the back door and fed him some scraps, a piece of corn fell to the ground and our little girl came running.  Without any warning, the lab had her by the neck, shook her and killed her.  She was 10.  Jake has never shown aggression toward humans, but has been aggressive previously toward other large dogs.  Is this a case of food aggression and an accident where the lab didn't intend to kill...or is this dog dangerous?  He seems to be searching for her in the back and every where we go.

Answer
hi Lisa,

seems like you have a problem.

I'll try to itemize my thoughts:

- Labs SHOULD NOT show aggression at this magnitude. Hurting and killing another dog is something a pedigree should never do. Have you been training him to control him temper and aggression?

- DO NOT put the lab in a leash and punish him. one of 2 things is evident -
   1. He is either threatened by the other dogs. Which should not be the case since labs stay very well with other breeds. Unless if you have recently moved to a new place or there are undue stress conditions like heat for the lab
   2. You are not training him to control his aggression. Take him for long walks and vigorous exercises. Make him take out his aggression on a ball or something chewy.

To answer your question - Yes your lab can get dangerous. He can attack an infant or a little child too. You MUST train him to be tolerant and less aggressive. I strongly recommend a trainer. His behavior can go out of control.

best,
Sam