Updated

Autopsies have helped identify 63-year-old twin brothers who were found dead last weekend in their Chattanooga home.

But the autopsies did nothing to resolve the mystery of what happened to the brothers and how their bodies could have remained in the home for about three years without anyone noticing.

Chattanooga police say the autopsies confirmed the men were Andrew and Anthony Johnson. Police say they were found dead Saturday. They were sitting in recliners inside their home and both appeared to have died in 2011.

Chattanooga police say there were no signs of foul play. They also said neighbors didn't notice anything was wrong. A police spokesman said the brothers were reclusive and did not communicate with family or anyone else.