The shooting happened last month on the Market-Frankford Line after an argument between the guide and the man who was a rider on the train.
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Police were called around 4:30 p.m. Tuesday to the 1800 block of North 18th Street in North Philadelphia.
When they arrived, they found that the shooting suspect had barricaded himself inside a home.
Within the hour, SWAT officers were able to get the suspect to surrender.
Police say he was the gunman who shot a safety guide contracted by SEPTA on the Market-Frankford Line back on June 15.
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The 27-year-old safety guide was shot once in the leg, according to officials.
The name of the suspect has not been released.
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