A fight between two drunken transients over a stray dog turned violent when one stabbed the other with a knife, a Petaluma police lieutenant said Wednesday.
The fight occurred late Tuesday afternoon along Petaluma Boulevard South.
Officers arrested Robert Sommer, 52, at Wickersham Park after the 4:45 p.m. incident, Corporal Brian Miller said.
Frederick Dutter, 56, told officers he had been caring for a dog he found but it had gone missing. The fight started after Sommer told Dutter he had found the dog and it was now his, said Lt. Tim Lyons.
The verbal exchange became a struggle, with Sommer armed with a knife and Dutter armed with a stick.