Marshall photo Atchison Co. ATCHISON COUNTY—Law enforcement authorities are investigating a Kansas teen on drug and theft allegations.Just before 11p.m. Tuesday, officers responded to the Walmart Store at 1920 U.S.73 in Atchison to investigate a theft, according to Police Chief Mike Wilson.It was determined that a suspect, later identified as 18-year-old Kaleb Marshall, had stolen $221 in merchandise that included a backpack and clothing. The suspect left the area in a vehicle. Authorities issued an alert for that vehicle and a short time later sheriff's deputies stopped the vehicle at 262nd and Ottawa Road, according to Wilson.Officers arrested Marshall for the theft at Walmart and subsequently found methamphetamine on his person.