In this task, you are given a sentence in the Japanese language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).

１人は心臓発作が起こり、もう１人はパニックになり窓から飛び降りたあとで死亡したと考えられています。
 one was thought to have suffered a heart attack and the other died after jumping from a window in panic.

燃料費は値下げされたものの、既存の損失で打ち消された。
Fuel costs have fallen, but previous hedging has negated this benefit.

その一方で、ConsumerFocusによる２００９年の９月前半の調査によれば、「エネルギー会社は毎年、顧客から１００ポンド（１６２ドル）余計に徴収している」とのことである。

Meanwhile, a study by Consumer Focus in early September 2009 suggested that "energy companies were overcharging customers by ￡100 ($162) every year."