She would be 65 today.

28-year-old Mary Jo Kopechne died in a car driven off a bridge by
Senator Edward Kennedy. Now its been 37 years since 1968.

His failure to promptly report the accident may have killed her if there was an air pocket in the car.

His motive for now reporting the accident promptly was concern that he might be tested for being drunk and not being able to control the publicity around the incident.