A Vancouver man accused of robbing a Wells Fargo bank and then turning a gun on a police officer in December was arraigned Thursday on 15 criminal charges. His case had been delayed for months over a question about his mental competency. Stephen A. Lubeck, 19, pleaded not guilty to charges related to the Dec. 1 heist, including additional charges filed Thursday. Charges include first-degree robbery, eight counts of second-degree assault and six counts of unlawful imprisonment. Trial was set for March 28. The assault charges relate to bank employees and patrons whom Lubeck allegedly pointed a gun at as he entered the bank, according to charging papers. Vancouver police Officer Jeffrey Anaya, who confronted Lubeck after he left the bank and ran behind the Ross Dress for Less store, is also listed as an alleged victim.Anaya shot Lubeck in the upper thigh after the suspect threatened to shoot if Anaya didn’t shoot him, according to court documents. The officer was cleared in December of any charges related to the shooting.Prosecutors filed the unlawful imprisonment charges against Lubeck because they say he ordered bank employees to retrieve more money from the vault — more than $300,000 — and then he allegedly ordered them to not move or do anything before he fled, according to charging documents.