By James Nye PUBLISHED: 13:21 EST, 20 May 2013 | UPDATED: 15:31 EST, 20 May 2013 A distraught Tennessee couple have denied they neglected their parental duties after their 407lbs 15-year-old son died and his chronically ill sister passed away just four months later. Despite losing their remaining 12-year-old daughter to a care home, Derek and Sherry Head are adamant that they are good parents - reminding authorities they have buried two of their children after doing everything they could for them. 'Nobody knows what it is like to have to do CPR on your own child,' said an emotional Sherry as she spoke about her daughter Tamara. 'I wouldn’t go through it again, not in a million years. I done everything I could … to bring her back'
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Derek and Sherry Head lost two of their three children last year in the space of four months
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Brother Adam and sister Tamara died in similar circumstances after both suffering seizures
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Child welfare in Tennessee have taken the Head's surviving 12-year-old daughter away from them
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They are awaiting the results of an investigation before they can take her back
Both parents did not work and relied on food stamps and the disability checks @placeholder and Tamara were issued by the government.