A Springfield man who escaped from prison has been convicted of killing a barbershop customer, wounding the barber, and then injuring two officers during a shootout with police. A Hampden Superior Court jury found Tamik Kirkland, 27, guilty Wednesday of charges including murder and armed assault with intent to murder. He was sentenced to the life without parole. Authorities said Kirkland escaped from a minimum-security prison in April 2011. Five days later he went into a Springfield barbershop and wounded a barber and fatally shot a customer. He was shot six times in a shootout with police.