noun (n)

• someone who walks with long stiff strides(noun.person)

  source: wordnet30
• someone who stalks game(noun.person)

  source: wordnet30
• someone who prowls or sneaks about; usually with unlawful intentions(noun.person)

  Synonym:
  prowler, sneak
  

  source: wordnet30
• One who stalks.(noun)

  source: webster1913