Would a Group Opposed to Police Blow the Whistle on Its Founder?

Jasmine Banks’s disillusionment started with a credit-card bill.

She was proudly, fervently dedicated to the radical mission of the nonprofit where she worked, that police everywhere should be abolished. She reported to the group’s founder, a charismatic activist with a compelling life story: His fiancé had been killed by an abusive cop. She believed their nonprofit would show the world it did not need law enforcement.

Then her boss went on vacation, and left her, as deputy director, in charge. Sitting at her desk at home, she saw in the accounting system that he had just used the nonprofit’s card to pay a $1,536 hotel bill — a big bill for such a small organization.

At first, she was not worried, just curious. Why would he do that?

“He knows we’re running out of money,” Ms. Banks remembered thinking.

She dug deeper into the nonprofit’s bank records and found much more that concerned her. Mansion rentals. Vet bills. Luxury clothes. Finally, a stay at a Cancun resort. Ms. Banks scrolled back through Facebook to the week that resort bill was paid. She saw her boss, Brandon D. Anderson, posing in a pool.

The photo was tagged: “Cancun.”

She stewed for a few days, then sent an email to members of the nonprofit’s board: “I am reaching out to you regarding a confidential issue that requires immediate attention.”

What happened next tested everyone who had believed in Mr. Anderson’s vision — fueled by his story of personal pain — for the transformation of America’s relationship with police. Because of what their captivating leader had done, Ms. Banks and her colleagues were forced to grapple with their most deeply held ideals about altruism, crime and justice.