Four Friends Puzzle

#153

Four friends Tom, Dick, Harry & Sally are in a conversation to find out the culprit amongst them.
1. TOM said "DICK is the culprit". 
2. DICK said "TOM is the culprit".
3. HARRY said "DICK is telling the truth".
4. SALLY interrupted them in between & said "HARRY isn't lying".

Three of them are telling a lie. So. who's the culprit ?? 

  Difficulty Level - 4/5

  For Solution : Click Here     
  For Hint : Click Here