Bohdan Vitenko and Jonathan Proce

Bohdan Vitenko and Jonathan Proce These two boys, both age 21, died while doing a Navy SEAL training exercise. Jonathan Proce, of Sunnyside and Bohdan Vitenko were found unconscious in 3 feet of water in a Staten Island public pool on Wednesday July 13, 2011. The pair were doing breath-holding exercises similar to those used in military training, authorities said. Bohdan Vitenko died at the site of the incident, and Jonanthan Proce, who was a certified lifeguard, later died in the hospital after going into a coma.