This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

O’FALLON, MO (KTVI) – The man who was shot and killed by Pamela Hupp in her home earlier this week died after being shot in the chest multiple times, an autopsy said.

Investigators have classified the death of Louis Gumpenberger, 37, as a homicide. He was killed Tuesday inside Hupp’s O’Fallon home.

Hupp told police Gumpenberger confronted her outside her home and followed her inside.

Hupp was a former witness in the high profile Betsy Faria murder trial. Betsy’s husband, Russ, was first convicted and later exonerated after new evidence surfaced. The evidence involved $150,000 in life insurance proceeds, signed over into Hupp’s name days before Betsy’s murder.

Hupp was never named as a suspect during the Faria investigation and O’Fallon police are not talking much about this shooting because they’re still investigating.

To read more about the Faria murder trial, click here.