MILWAUKEE (WKOW) -- The Milwaukee County sheriff's deputy killed in a traffic crash this summer was going too fast and not wearing a seatbelt.
Those findings were released in the State Patrol investigation report Tuesday.
It found deputy Sergio Aleman was going almost 50-miles an hour when he hit a tow truck on Interstate 43 in Milwaukee.
Investigators say they tried, but failed, to get authorization to analyze the deputy's cell phone record, so they say it's not clear why he didn't slow down as he approached stopped traffic in the July 31st crash.
The report says the flatbed tow truck had slowed significantly due to highway congestion.
Several witnesses also said that traffic had slowed and that many drivers had to "brake hard" when approaching the area.
The State Patrol report said that "evidence indicates that Deputy Aleman was not wearing a safety belt at the time of the collision," and that he "failed to appropriately react and respond to slowing and stopped traffic in front of him."
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