Woman charged for trying to poison husband's coffee

TUCSON, Ariz. (CNN) — A woman is behind bars after allegedly trying to kill her husband by poisoning his coffee.

Melody Johnson faces several charges including first-degree attempted murder.

Back in March, her husband started noticing a different taste in his coffee.

He tested it and found it contained high levels of chlorine.

So he set up a hidden camera and discovered she was pouring a liquid -- believed to be bleach -- into the coffee pot.

The couple was going through a divorce at the time, but still living together.

Investigators believe she was trying to collect his death benefits.

Her bond was set at $250,000.