Final answer:
The crime committed by the suspect who approached a man after ATM withdrawal and demanded money with a knife is armed robbery, a serious felony offense.
Step-by-step explanation:
After a man made a withdrawal from an atm, a suspect approached the man, pulled a knife, and demanded the money. The suspect committed the crime of armed robbery.
Armed robbery is a form of theft that involves the use of a weapon to force someone to give up their property. In this case, the use of a knife as a means to intimidate the victim and obtain the money forcefully makes it an armed robbery, which is considered a serious and violent felony offense.
From a law enforcement perspective, having evidence of carrying an unlawful weapon can corroborate the suspicion of involvement in a robbery, although direct evidence would be required for a conviction. The scenario here aligns with the common conception that banks and ATMs are targeted by criminals, as echoed in the anecdote involving bank robber Willie Sutton, who justified his targeting of banks simply because "that's where the money is." However, most money in the modern economy is not physical but digital, making crimes like armed robbery more visible and punishable in society.