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INDIANAPOLIS, Ind. (November 17, 2015) — A week later and still no answer to who killed Amanda Blackburn.

The pregnant mom was shot in the head during a home invasion.

Amanda’s husband and local pastor, Davey Blackburn, was the one who found her in their home.

“We’re confused. We don’t understand why. We’re angry. We’re not really sure what to do,” Davey said.

Investigators say a neighbor found a gun a block away from Amanda’s home. The gun is currently at the crime lab being analyzed. It’s still too early to determine if it’s connected to Amanda’s murder.

Detectives released two surveillance pictures of a man they are calling a person of interest in the case.

“The trail is not cold. I know we all saw those pictures and we wanted to see that person’s face and we want to find him,” said Ryan McConnell, the captain of the neighborhood crime watch.

Piezanos, a pizza shop a few miles from the Blackburn’s neighborhood, has started attaching the Crime Stoppers flyers to all pizza boxes.  The restaurant is making sure all their customers have the number to call if they have clues.

Neighbors are trying to increase the $1,000 reward.

“We just want some answers and we want some peace to know this guy is caught and we will not stop until he is,” said Becky Vandenburg, Blackburn’s neighbor.

If you have any information that could help detectives find Amanda’s killer call 262-TIPS.