I have to cope by not watching the news. I will read a few different sources, but have completely given up listening to anything from the bought and paid for mainstream media, with all it's spin and bias. I was cured of them very emphatically during my years in emergency services - I have too many horror stories of news reporters traipsing into a scene and interfering with patient care, and the number of times I got home after a run and saw the report of what supposedly happened on the evening news being so completely wrong and false - to ever believe anyone in journalism ever again. An interesting side note to that, if I happen to be somewhere and someone has the news on, the "this is what you're supposed to believe" part of it comes through so loud and clear! If folks would look away and think for themselves for a while, I think they'd be amazed at what they're placidly swallowing as they sit there watching the performances.
And I have enough going on here on my homestead, and in my job, to cope with and accomplish without making myself scared and maudlin over the myriad evil events of the day, reported with such glee by the talking heads.
Thirdly and most importantly, I strive to remember that God is always in control, no matter what. That's so very hard, especially when I'm so angry and hurt that He allowed my Beloved Husband to die. But it's true, the war is already won, Christ paid the debt for all. We are living in the end times of a fallen and sinful world but there is truth to hold on to and guide us. Someone once said "The only heaven an unbeliever will ever know is here on earth. The only hell a believer will ever experience is here on earth." I find that a helpful reminder.