Press the button to the right of the home. Swipe away after that
sent from my droid DNA
I don't believe this actually closes the apps completely. I just tested by swiping Pocket Casts while listening to a podcast and although it was no longer in the recent apps list, it didn't stop the podcast from playing.
The only way I know know for sure will close the apps is to stop them from Applications within Settings.
Why do to want to manually close them?
Steve
Sent from my HTC6435LVW using Tapatalk 2