A car park owner who tried to commit suicide after he gunned down a rival was convicted of murder yesterday. Lam Chi-kwong, 37, was found guilty by a High Court jury of murdering Tang Kai-lun on April 2 last year in a Yuen Long car park, and sentenced to life imprisonment. A long-running feud over car park boundaries ended in murder when a heated argument broke out between Tang, 38, and Lam and his brother Lam Chi-ming, 32. The brothers spotted Tang's workers building a fence on April 2 last year. A fight broke out and Tang was shot at point-blank range in the chest by the elder Lam. He fled and hid out in a Sai Kung villa, where, in a series of suicide notes to his brother and the police, a drunken and depressed Lam absolved his brother of any responsibility. He then tried to kill himself by slitting his wrists but was revived when the police broke into his room. Lam, who denied murder, told Mr Justice Thomas Gall the gun went off accidentally during a struggle.