Final answer:
Multiple witnesses can place Walter at various locations during the time of the murder, which is a significant evidence in his defense.
Step-by-step explanation:
In a criminal case, it is important to establish an alibi, which is evidence showing that the accused person was somewhere else at the time of the crime. In this case, there are multiple witnesses who can place Walter at various locations during the time of the murder.
The most relevant alibi locations to consider are his workplace, his home, and a nearby restaurant. If there are witnesses who can confirm that Walter was at any of these places, it would provide significant evidence to defend him.
For example, if multiple colleagues testify that they saw Walter working at his workplace during the time of the murder, it would be strong evidence that he could not have committed the crime. Similarly, if neighbors or family members confirm that Walter was at home or if restaurant staff recall seeing him at the nearby restaurant, it would further support his alibi.