Authorities did not release the woman’s name Sunday.
In a statement Sunday, the police said Lampien would be charged with involuntary manslaughter.
An employee who answered the telephone Sunday at the Old Heidelberg said the police had instructed the restaurant’s staff not to speak to reporters.
In a brief telephone interview, Lampien’s wife, Valerie, said her husband was recovering. She was not with him Saturday night in Helen.
“I don’t know what happened myself,” she said. “It’s an unfortunate situation.”
Lampien is the owner of Lampien Mechanical Services in Jasper, which installs and services commercial and industrial air conditioning systems. Public records indicate he was convicted of driving under the influence in 1999 and sentenced to probation.
The shooting occurred less than two months after a new law took effect in Georgia that greatly extended gun owners’ rights to carry weapons in public places. Bars are among the locations covered by House Bill 60.
In an online forum sponsored by GeorgiaPacking.org, a gun-rights advocacy group, one commenter said Sunday: “Of course, HB 60 will be blamed.”
A woman posting to the Helen Police Department’s Facebook page took a different view: “Guns everywhere! This is our brand new law in action.”