Charlie Gilmour, the adopted son of Pink Floyd guitarist David Gilmour, received a 16-month prison sentence on Friday (july 15) for a drug-induced rampage during a London protest over student fees.

During the December 2010 incident, the 21-year-old Cambridge University student threw a garbage can at a caravan of cars that included Prince Charles among its passengers. He also kicked in a shop window and was photographed hanging from a union flag at the Cenotaph that commemorates victims of World War I.

Charlie, who was apparently hopped up on LSD and valium on the day of the rampage, heard some stern words from the judge during his sentencing.

"Such outrageous and deeply offensive behavior gives a clear indication of how out of control you were that day," said Judge Nicholas Price. "It caused public outrage and understandably so."

The judge was particularly angered over Charlie's actions at the Cenotaph war memorial. "You have shown disrespect to those who gave the ultimate sacrifice, to those who fell defending this country,: added Price.

Charlie was originally set to be sentenced on Thursday, and was accompanied by his rock-star father on his way into court. David adopted Charlie after marrying his mother, Polly Samson. Charlie's biological father is the poet/playwright Heathcote Williams.