i'm kimberly souter. it has been one week since he was shot and killed driving on the belly. today, they laid him to west -- to rest. our stephen kita has the latest in this death investigation. sayrter: they gathered to farewell, in the garb of a team a loving husband and father adored. this, while they still don't know why someone repeatedly shot the 55-year-old. >> we want to say thank you for all your love and support. just remember peppy. he was a good guy. reporter: investigators do not know whether this was targeted, road rage, or random. the shooting took place after he drove a friend home to washingt back. in recent days, investigators have started getting a trickle of tips. they are following up on every possible lead, but so far, no breaks. meanwhile, there hope as fourth of july vacations end, someone who witnessed the shooting hears about what went down and contacts policed. his family struggles to comprehend why anyone would want to harm him. >> he was a fun, happy, jolly person. he was always trying to make life better for you. his 1999 white mercury grand marq