What American electronic musician has released the album In Decay and has also done tracks under the names Sarin Sunday and SYSTM? 
In Decay: In Decay (stylized as in decay.) In Decay:  is a compilation and studio album by American electronic musician Seth Haley's project Com Truise, released on July 16, 2012 by the independent record label Ghostly International. Com Truise:  Prior to that, Haley released music under the pseudonyms Sarin Sunday, SYSTM, and Airliner.
Seth Haley