Somerset police arrested one person in connection to last month’s burglary of Somerset High School in which several thousand dollars worth of property was stolen. 21-year-old Alexander Keith, of Somerset, was arrested and charged with theft by unlawful taking of more than $10,000, burglary and criminal mischief. Police are still searching for 22-year-old Clifford Jarvis. Police say both were captured on surveillance video stealing items from the high school. Jarvis is known to live in the Mount Vernon area. Police are investigating how Keith and Jarvis were able to get into the high school.