A man investigating intruders inside the tow yard where he works was blindsided with a blow to the back of the head shortly before midnight on Sept. 22, police said.

The victim, an employee of the tow yard, located in the 2500 block of Old Middlefield Way, had just returned to the yard when he heard something suspicious, according to Mountain View police spokesman, Sgt. Sean Thompson. He saw a man he didn't recognize, and told him to leave. The man started walking toward him and he repeated his command.

The 50-year-old employee was struck in the back of the head by another man he didn't see, Thompson said. The intruder and his accomplice fled the tow yard.

When emergency responders arrived, the man was bleeding from the back of his head, Thompson said. He described the man he saw as 6 feet tall, about 200 pounds and probably about 35 years old.

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