Puzzle:

A Dog, a Cow and a Goat were stolen. Three suspects got caught: Raghu, Kiran and Sam. Each person stole one animal, but we do not know who stole which. Here are the investigation statements.

• Raghu said: Sam stole the Dog.

  
  




• Kiran said: Sam stole the Cow.

  
  




• Sam said: They both were lying. I did not steal the Dog or the Cow.

  
  

Later on, the police found out the man who stole the goat told a lie. The man who stole the dog told the truth. Can you find out who stole which?