My 7 yr old son is doing some really disturbing things and doing a lot of violent things. What should we do?

you are debating whether your kid needs counseling?? Your kid needs to see a psychiatrist everyday as far as I am concerned. He is in need of some serious help. Normal kid behaviour does not include hurting animals, stabbing and strangling people. Give your pet/s away to people who will care for them. Hurting animals is one of the first signs of deep issues that present even worse down the track