Menace of Terrorism (Introductory Paragraph of an Essay)

Terrorism is an act of killing, harassing, horrifying and inciting violence among the peaceful P public. It has made life tough to live/living normally. Terrorism is against all the E ethical norms and a violation of human rights. The world has witnessed thousands of P people felling falling prey to this pandemic of terrorism. No country on the world map is free from its menace. More or less, It it does exists in every country, though taking it takes different shapes ['forms' would be a better word choice here]. Somewhere In some places It it is in a form of religious extremism and somewhere in others it is in a form of racism.

All S suggestions are welcome :) I have put a slash at in places I felt confused. I will be adding more related paragraphs to justify the topic.

This is quite good. Bravo!

I suggest reviewing the use of prepositions, like "in, at, on" as well as the use of articles like, "a, an, the".  Here's a game to help you practice prepositions: http://www.eslgamesplus.com/preposition-interactive-grammar-game-for-esl-wheel-game/ 

Be aware the use of capitalizations; we don't capitalize words as often as in, say, German. Usually we capitalize proper nouns and adjectives, trademarks, a person's professional title (not but a job name itself), etc. This page will help: http://www.grammarbook.com/punctuation/capital.asp

Best,

Chris