I urge you to make the time to listen to this presentation about why you should not talk to the police, no matter your guilt or innocence in any matter.
This is an audio presentation of this YouTube speech (viewed over 23 million times wherein Regent Law Professor James Duane gives viewers startling reasons why they should always exercise their 5th Amendment rights when questioned by government officials: https://youtu.be/d-7o9xYp7eE
(There is very little added value in the video presentation, so you'll gain the bulk of the knowledge by listening exclusively to the audio.)
Also, you should buy and read the $5 book that Professor Duane wrote to follow up to this speech: "You Have the Right to Remain Innocent." (highly recommended) http://amzn.to/2qgDFDF