SYRACUSE, N.Y. — A former Ivy League college student unsuccessfully tried by state prosecutors for killing his business executive father in their western New York home has pleaded not guilty to federal gun charges.

Canadian citizen Charles Tan was arrested by Immigration and Customs Enforcement agents while entering the U.S. on Friday.

According to the Democrat & Chronicle, (http://on.rocne.ws/2wODD51 ) Tan appeared in a Syracuse court Saturday charges of improperly receiving a 12-gauge shotgun and ammunition and lying to a gun seller at Walmart to obtain the weapon.

His attorney says he’s shocked by the charges which “came out of nowhere.”

Tan was 19 and a sophomore at Cornell University in February 2015 when police charged him with killing his father in their suburban Rochester home.

Prosecutors claimed Tan shot his father for abusing his mother. The case ended in a mistrial.


Information from: Rochester Democrat and Chronicle, http://www.democratandchronicle.com