Tommy Marth Dead -- The Killers Saxophone Player Dies in Apparent Suicide

Tommy Marth -- a saxophone player for The Killers -- was found dead at his Las Vegas home Monday ... and according to reports, the death has been ruled a suicide.

The Killers released a statement on Tuesday ... saying, "Last night we lost our friend Thomas Marth. Our prayers are with his family. There’s a light missing in Las Vegas tonight. Travel well, Tommy.”

Marth played sax on two Killers albums -- Sam's Town and Day & Age. He also toured with the band in 2008 and 2009. He was 33.