Two simple if-else codes in Python, should they not return the same value? Why each one returns something else

Two simple if-else codes in Python, should they not return the same value? Why each one returns something else.

def letter_check(word, letter):
  for i in word:
    if i == letter:
      return True
  return False

# This returns True    
print(letter_check("strawberry", "a"))

# Same function?
def letter_check(word, letter):
  for i in word:
    if i == letter:
      return True
    else:
      return False

# This returns False    
print(letter_check("strawberry", "a"))