A 19-year-old Waseca man critically injured in a diving accident on the 4th of July is reportedly improving. Cooper Tenney suffered serious neck injuries when he dove off a dock into shallow water in Le Sueur County’s German Lake. Tenney failed to resurface, but bystanders were able to bring him to the surface and begin CPR. First Responders continued trying to revive him, and his vitals were restored prior to him being taken to St. Mary’s Hospital in Rochester. The hospital reports that Tenney was upgraded to Serious condition on Friday.