William Kirk or Carniceria Taqueria Durango Inc

My son is selling his smart tv on Facebook for 750.00. This person messaged him and said they would purchase it for the full price. They said they would send a cashier's check in the mail and then upon receiving it they would send some one to retrieve the t.v. from our residence. We received the cashier's check and it looks fake. Looked up the bank with the routing number and it comes back to a bank from Bessemer, Alabama. But the package has an address from Buckeye, AZ.
Carniceria Taqueria Durango Inc
502 E Munroe
Buckeye, AZ 85326
The cashier's check has the name [redacted] on it. My husband looked up the address and got a phone number and he said he did not know anything about the cashier's check.