UPPER DARBY, Pennsylvania (WPVI) -- Upper Darby Police have arrested 18-year-old Jazmar Thomas in connection with a murder on Christmas Eve.
Authorities say Thomas is the man who was seen talking to the victim, 20-year-old Samir Geiger, at 9:30 p.m. in the 200 block of Margate Road.
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Witnesses say they heard an argument followed by 10 to 15 gunshots.
The motive is believed to be robbery.
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Police say they are continuing their investigation.