that 21 year-old michael joseph may stormed into a home in somerville early sunday morning. two men and a woman were stabbed. another suspect is also accused, but he has not been identified. he was picked out without incident last night during a traffic stop in baltimore city. >> the university student accused of killing a fellow student claims self-defense. he answered the door of his home with a shotgun after brandon carol confronted him about an incident at a party earlier that night. he said the two men lunged toward him and that is when he fired. he was killed by heart rate is expected to survive. he is being held without bail. a baltimore city police officer is -- officials tell the baltimore sun that the 21 year- old got into an argument with a waiter while off duty at the current the and blount. he allegedly pulled out a gun and threatened to shoot. he was arrested following a struggle with officers. he was released on is dumped reconnaissance and is currently suspended without pay. -- was released on his own recognizance. >> we are in store for another nice spring d

. >> michael joseph is head of safari com, the largest mobile phone operator in kenya. >> what would the product to introduce into an emerging market like kenya? it's the prepaid mobile phone. >> reporter: why? because for years, kenyans could not even communicate with the neighboring town. telephone lines are poorly connected here, and the service erratic at best. so cheap, pay as you go cell phones, now allow kenyans to talk and do fwiz with people in the next town or anywhere in the world. in kenya, many people work in the cities, but have family become in the rural areas, keeping in touch is important. so is sending money. once again, enter the cell phone. empaza, which means mobile money,a service that uses text messaging to securely send money around the country. it's an incredibly simple system. let's say for example you want to withdraw cash, someone sends money to your cell phone. that money sits on the cell phone number, you take the cell phone, hand it to one of the people at the shops, they look there, you enter the pin number, and they give you the cash. john walks into