The houses all look very similar to one another, which police believe may be another reason Marianne was accidentally targeted.
The entrance of Forest Glenn North, the housing community where Marianne lived.
Marianne Wilkinson lived in a quiet, well-kept housing community.
Cops found the murder weapon almost 8 miles away from where the crime took place.
Marianne Wilkinson was killed at her Texas home. Cops believe it was a case of mistaken identity.
Mike Wilkinson, Marianne's son, says Marianne was always a positive and encouraging mother.
Cops found the murder weapon three months after the crime. They say it's a blue Colt Trooper III .357 magnum revolver.
North Richland Hills detectives say Dr. John Bond was able to produce a very good fingerprint from these bullet shell casings.
Marianne Wilkinson and her husband, Don Wilkinson, were married for 46 years. They were not only husband and wife, but also best friends.
Don says Marianne loved gardening, decorating their house and going to the gym. The couple retired in North Richland Hills in May 2005, almost two years before Marianne was brutally murdered.