You Are an Investigator Who Has Been Assigned a Case

You are an investigator who has been assigned a case of elder abuse. The suspect has legal responsibility of care, custody, and control of his elderly mother, who is a victim of Alzheimer's disease. The suspect knows that the victim is prone to wandering aimlessly all hours of the night and day. However, the suspect neglects to lock the doors on a given night. The victim leaves the home around 2:00
a.m.and walks down the center of a major highway adjacent to the home. The driver of an approaching vehicle did not seen the victim soon enough to avoid hitting the victim. The victim was pronounced dead at the scene. You have been charged with the investigation to determine if the suspect may have caused the situation to occur. What will you have to prove to be able to develop probable cause in this case?