A DECORATOR who helped steal more than $4 million worth of gold in a series of armed robberies surrendered to police after his brother was questioned about treating him for gunshot wounds, the High Court heard yesterday. To Ka-sing, 27, told police he wanted to avoid further trouble for his family and made a full confession to five holdups committed within a year. In the fifth holdup, in May last year, To was shot in the chest and arm. His blood-stained clothes were found in the getaway car. In September last year, police inquiries led them to To's elder brother - a doctor at the Prince of Wales Hospital. He admitted treating To on the night of the robbery, the court heard. One week later To surrendered. Sentencing To to 18 years' jail yesterday, Deputy Judge Yeung took a starting point of 25 years and reduced it because of his surrender and guilty plea. He has two previous convictions for robbery and wounding. The judge said To would not have hesitated in using his pistol during the robberies, and shots had been fired. It was fortunate no one was seriously injured or killed. Reading the agreed facts, Crown Counsel Frank Veltro said the first offence was an attempted robbery of the Chow Sang Sang goldsmith shop in Shamshuipo on June 25, 1991, by To and three others. To fired a shot at the ceiling but failed to smash the glass showcases with axes. The men fled in a stolen vehicle and fired three shots as they left empty-handed. On July 5, 1991, To and three others took $1.5 million worth of gold ornaments from the Wing Hing Lung goldsmith shop, Tai Po, although about half was recovered in a stolen getaway car. A woman passer-by was taken hostage briefly during the robbery. On October 22, 1991, and February 27 last year, To and three others robbed the Yat Sun goldsmith shop in Tuen Mun, taking more than $1.8 million worth of goods in the first robbery and almost $900,000 in the second. Shots were fired, a staff member was hit in the arm, and the manager had a gun pointed at his head. In the final robbery, on May 29 last year, To robbed the Sun Tung Shing goldsmith shop in Sheung Shui with four others and took $110,000 worth of gold ornaments. The men were seen by plain-clothes police passing in a van and there was a gun battle as the robbers left the shop. One robber was shot in the head and died. To was shot in the chest and arm. The gang escaped by forcing a man and his two daughters out of their car at gunpoint and taking the vehicle. To's blood-stained clothes were later found inside. In mitigation, John Marray said To was genuinely remorseful. He came from a good family; his brother and sister were both doctors and all were supporting him.