Who started this fire and why?

[malaise]

2. More

http://www.cbsnews.com/news/house-fire-that-left-hospital-ceo-wife-dead-is-ruled-arson/
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The fire that apparently claimed the lives of the president of a major southern New Jersey hospital and his wife has been ruled arson, authorities said Wednesday.

Investigators with the Somerset County Prosecutor's Office determined that the fire last weekend was intentionally set in the master bedroom of the Montgomery Township home where John Sheridan, 72, lived with his 69-year-old wife, Joyce. However, they did not provide further details on their findings.

Authorities have not yet said what caused the couple's deaths. County Prosecutor Geoffrey Soriano said the investigation is ongoing, adding that his office is awaiting lab test results.

Police and firefighters responded to the couple's home just before 6:15 a.m. Sunday. Authorities have said the fire was contained to the master bedroom, where firefighters found the unresponsive couple.