Callum Johnstone has been able to spending a year studying at Syracuse University thanks to this year's Lockerbie scholarship.
The school forged a special link with the university following the disaster, in which 35 of their students died.
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John Davidson, who grew up in Newcastleton, was killed while trying to arrest a suspect last week.
Police are looking at CCTV footage after money was taken from her bag in a shop in the town.
Four other people have been released without charge, after Kevin Slater was found dead outside a property on Borland Avenue.