 After nine days in Fresnes prison, Shepard was pardoned after paying a further $2,000.In the 1906 Vanderbilt Cup, a race started in 1904 by his cousin, William Kissam Vanderbilt II, Shepard lost control of his Hotchkiss HH car and hit two spectators who were killed in the incident.Unaware of what had happened, Shepard continued until reaching the service area at East Norwich.