By Joan Murray

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BOYNTON BEACH (CBSMiami) — The search is on to find a shooter who killed one man in traffic and left bullet holes in a second car.

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The incidents unfolded late Wednesday morning in Boynton Beach.

Chopper4 over the scene of a deadly shooting on I-95 in Boynton Beach. (Source: CBS4)

Chopper4 over the scene of a deadly shooting on I-95 in Boynton Beach. (Source: CBS4)

The sheriff’s office says the driver of a white SUV was shot and killed as he was driving eastbound on the I-95 overpass of Gateway Boulevard.

“The car was off the median. The window was smashed,” explained Serge Montejo. “First I thought it was an accident. Then I realized it was something afar.”

The assailant was in the passenger’s seat of a small gray SUV and is described as a dark skinned man with hair pulled back and a thin build.

Witnesses say the grey SUV then headed north on I-95 where there was an encounter with a second vehicle, a dark BMW.

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“I hear, ‘pop, pop, pop,’” said Ryan Anderson.

Anderson watched as the shooter opened fire on the BMW, but no one in that vehicle was hurt.

“I think a shell casing hit my window, I am pretty sure,” he said. “I ducked and swerved off the freeway.”

The driver of the BMW pulled over at the Lantana exit of I-95 where sheriff’s deputies responded.

Investigators aren’t saying how the shootings are tied.

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If you have any information on either of the incidents, you are asked to call Crime Stoppers at (954) 493-TIPS.