Who Killed the Minister

Mike Blanch was relaxing at home, when the phone rang. A whispering voice told him that someone is out to kill the minister. Mike as he didn't recognized the voice, contacted detective Al Laurence. Al, thanked him, but, he said. Without knowing who called, not much we can do. I understand that you are invited to that you are invited to minister Dolf, on Saturday. Are you going? Yeah, Al both Ralph and I are coming. At the ministers party, most of the towns people were there. Some time later, the ministers wife Liz said that food will be served. About an hour after the food, most guests started to go home. Then, the minister gave a sharp scream, and fell to the ground. Who killed the Minister? Read and find out.