but the motive for the murder still unclear. police say the gunman walked up to tom clements house and shot him dead when the victim answered the front door. two days later cops in texas caught up with the suspect after a wild 100 mile-per-hour police chase. officers shot the suspect after a car crash. at a memorial service today the widow of tom clements spoke about the night her husband died. >> last tuesday night, tom and i were watching tv and our doorbell rang. and my life was forever changed. >> >> shepard: clements widow went on to say while her husband would have wanted justice for the gunman he also would have wanted forgiveness. let's get this done. let's get this done that's what the 'president is saying about immigration reform. 28 new american citizens including 13 members of the united states military. the president says congress is making progress on a reform plan. now he is calling for lawmakers to finish the job.