A place is a portion of space occupied by a person or thing. Time is a space in which events occur.
To exist is to be in a space of place and a space of time.
The variable is which space of place one is in at a given space of time.
On September 6, 2011 Denise Gay’s place and time coincided with the space and time of Leroy Webster. Denise Gay was shot in the head by Leroy Webster as she sat on her stoop with her daughter.
Denise Gay was a bystander.
Wrong place/wrong time.