10:23 PM - The university's annual science gala was interrupted by screams from the chemistry lab.
You arrive to find renowned chemistry professor Dr. Alan Whitcombe collapsed on the floor, dead from apparent poisoning.
The lab was locked from the inside, with only a small group of people having access.
Examine the evidence, interrogate the suspects, and determine who poisoned the professor.
Time is critical - the killer might destroy evidence!
Victim: Dr. Alan Whitcombe, 62, Chemistry Department Head
Time of death: Between 9:30 PM and 10:15 PM
Location: Locked chemistry lab (keycard access only)
Cause of death: Ricin poisoning (found in his coffee cup)
Five people had access to the lab at the time of the murder:
Age: 45 | Relationship: Chemistry Professor
Motive: Her research was being overshadowed by Whitcombe's
Alibi: Claims to have been setting up the gala buffet
Note: Recently failed to get tenure
Age: 28 | Relationship: Whitcombe's PhD student
Motive: Whitcombe was taking credit for his research
Alibi: Says he was in the library, but no one saw him
Note: Had access to ricin for lab experiments
Age: 24 | Relationship: Estranged daughter
Motive: Cut off from family fortune after dropping out of med school
Alibi: Claims to have been at a movie, but no ticket stub
Note: Recently took a chemistry course
Age: 58 | Relationship: Competing researcher
Motive: Whitcombe was about to disprove his life's work
Alibi: Says he was giving a speech at the gala
Note: Has published papers on plant toxins
Age: 42 | Relationship: Head Lab Technician
Motive: Whitcombe discovered she was stealing equipment
Alibi: Claims she was cleaning storage room
Note: Only one who knew Whitcombe's coffee schedule
Select the killer based on the evidence: