a coworker went to cheep on the 36-year-old phillip de martino at his house after de martino failed to show up at work. the coworker said he found de martino lying on the floor stapped multiple times in his chest. investigators say the stabbing may have happened during the weekend. police have not identified the killer. >>> san francisco is taking initial steps to expand landmark legislation. it passed three years ago. that law prohibited big box retail stores from handing out plastic bags. now there are calls to broaden that band. our christian kaplan is live tonight in san francisco with details. christian. >> reporter: san francisco was the first city in the country to ban retail plastic bags like this one but there were exceptions to that ban. one san francisco supervisor is determined to change that. >> today, i am introducing an ordinance that bans plastic bags entirely in san francisco. >> supervisor ross mcramey says the new order fant nance would act in concert with the existing plastic bag law. currently major retailers are limited to offering customers paper bags, compositab

to bring you back across the street, this is the apartment where dei martino was found dead. the person responsible for killing him may have also been hurt during the attack. tonight inspectors arrived at the crime scene looking for new clues, a medical examiner truck and a patrol car also stopped by. this is a homicide investigation and the victim is phillip d. martino. he was found dead on monday august 2nd. >> they are looking for a hispanic male suspect. that may have cut himself during the attack. they also believe that the homicide occurred on the friday night which was july 30th. >> reporter: outside d. martino's apartment are flowers and picture, it's here that we ran into his neighbor who didn't want to be identified but told us he was a polite man that liked to have company. >> i looked a couple of guys come and go. there were a couple of guys that looked suspicious, they looked in my apartment and i didn't feel safe. >> reporter: in june 2007, the san francisco resident named de la laza also aged 36 was found stabbed to death in his home. in that case there were no

to bring you back across the street, this is the apartment where dei martino was found dead. the person responsible for killing him may have also been hurt during the attack. tonight inspectors arrived at the crime scene looking for new clues, a medical examiner truck and a patrol car also stopped by. this is a homicide investigation and the victim is phillip d. martino. he was found dead on monday august 2nd. >> they are looking for a hispanic male suspect. that may have cut himself during the attack. they also believe that the homicide occurred on the friday night which was july 30th. >> reporter: outside d. martino's apartment are flowers and picture, it's here that we ran into his neighbor who didn't want to be identified but told us he was a polite man that liked to have company. >> i looked a couple of guys come and go. there were a couple of guys that looked suspicious, they looked in my apartment and i didn't feel safe. >> reporter: in june 2007, the san francisco resident named de la laza also aged 36 was found stabbed to death in his home. in that case there were no