launching the careers of artists like bill withers, famous for the songs "lean on me" and "ain't no sunshine." he and his wife were married for 54 years and have two children. authorities say they are not ruling anything out as they search for motive, it comes as celebrities like magic johnson and tyler perry are offering condolences. will carr, abc news, los angeles. >>> an investigation is under way in munich, germany to determine why a world war ii era bomb was not discovered before it exploded. the blast yesterday near a construction site at a busy rail line injured four people, one of them seriously. train service in the area was delayed for several hours. the 550-pound bomb was found while drilling work was being done. >>> the list of the most expensive cities is out with an upset at the top spot. tel aviv leapt from fifth place to first. tel aviv knocked paris into a tie for second with singapore followed by zurich and hong kong in the top five. new york came in sixth place and los angeles in ninth. >> tel aviv is a beautiful city. it's like the miami of israel right there. it's very