Updated at 12:52 p.m.: Revised to add the man's identity.

A jogger running along White Rock Lake discovered the body of a man floating in the water Tuesday morning, Dallas police said.

Billy Luther, 72, was discovered about 6:25 a.m. near the 1100 block of East Lawther Drive, police said.

The witness at first thought tennis shoes were floating in the lake but then called police after getting a closer look.

Luther was carrying his and his wife's driver's licenses and their wedding photograph. His car was parked nearby, police said.

There was no trauma to the man's body. The Dallas County medical examiner's body will determine his cause and manner of death.