Corbin pleads guilty

Dentist Barton Corbin has pled guilty today to two murders.

One is the shooting death of his former MCG dental school classmate Dorothy 'Dolly' Hearn in 1990.

The other is the shooting death of his wife two years ago.

Corbin entered the pleas this morning in court in Gwinnett County.

He was sentenced to two life sentences that will be served concurrently.