>> reporter: amber nelson is a constant presence here on the corner of adeline and emerson. she is hoping the constant reminders will encourage someone to give berkeley police the information they need to make an arrest. >> i do this every day. something like this. this one is special. >> reporter: amber nelson has laid flowers on a painting she created, at a spot where a gunman killed her fiance, celedon, two years ago. >> my fiance was the most amazing thing. >> reporter: the pair was walking home from celebrating celedon's 30th birthday. it's the day of his birth and his death. >> it's painful, especially on days like today. nelson planted a garden here. what started as a patch of dirt is now blooming. a reminder of his love of life. >> his inspiration to live and make life beautiful and enjoy it. >> reporter: the garden is growing. but berkeley police investigators say leads in the case are not. celedon was from chile. the consulate in san francisco is working with police to develop tips. a $2,000 reward is now $20,000. and nelson is speaking out in english and spanish.

amber nelson was walking home on the morning of september 12, 2010 when robbers attacked them near the ashby bart station. during the robbery he punched the man and he did not survive his injuries. >> it was tragic in that we cab bring him back but we want to find the people who did this. >> reporter: there is a $25,000 leading to his arrests. colleges who wish to remain anonymous can contact bay area crime stoppers. >>> three people have been injured in two separate shootings. the first happened on 98th avenue in east oakland shortly before 9:00 last night. two people were shot in the leg and the second one happened in west oakland 40 weeks earlier. police say all three victims are in stable condition so far no arrests have been made. >>> there is a change in strategy in the search for sierra lemar nearly six months after her disappearance. volunteers will no longer hold searches on wednesday, however the regular serve on saturday will expand. sierra lemar disappeared on march 16th. 21-year-old antolin garcia- torres has been charged in her murder even though the police have not found

amber nelson feels compelled to come here in berkeley. >> i'm kind of just following his example about the way to bring beauty and happiness to the world. >> reporter: she imagines a time when police solved the killing of her fiance, whose nickname was feto. she created this garden sanctuary because this is where he was shot to death, in front of her, on his 35th birthday, in 2010. >> how often do you come here? >> every day. usually -- well, sometimes two, three times a day. but every single day. you know, sometimes i only stay for ten minutes. sometimes i stay for four hours. >> reporter: today, they were reminding the bay area of this case, because feto moved here from chile after he and nelson met and fell in love. >> he was an idealistic person, a sort of artist as well. he liked to do theater. >> reporter: berkeley police admit it's been tough to close this case because the killing happened during a robbery at 3 in the morning when few, if any, people were around to witness it. >> we can't bring him back but we would like to be able to find a little bit of closure to say we did f

. >> amber nelson feels compelled to come to the corner of adeline in berkely. >> i'm just following his example about the way to bring beauty and happiness to the world. >> reporter: she imagines a time when police solve the killing of her fiance. nelson created this garden sanctuary, because this is where he was shot in front of her. >> how often do you come here? >> every day. usually, two or three times a day. but every single day. >> reporter: he moved here from chile, after he and nelson fell in love. >> he was an holistic person. he was an artist as well. he liked to do theater. >> reporter: berkely police admit it's been tough to close this case, because the killing happened during a robbery at 3:40 a.m., when few, if any people were around to witness it. >> tragic in that we can't bring him back, but we would like to be able to find a little closure, to say we did find the people who did this. >> reporter: nelson shared a note sent to her for this somber occasion by his mother in chile. >> i cannot accept this, or find comfort. fito loved life. >> reporter: his family wanted

. >> amber nelson feels compelled to come to the corner of adeline in berkely. >> i'm just following his example about the way to bring beauty and happiness to the world. >> reporter: she imagines a time when police solve the killing of her fiance. nelson created this garden sanctuary, because this is where he was shot in front of her. >> how often do you come here? >> every day. usually, two or three times a day. but every single day. >> reporter: he moved here from chile, after he and nelson fell in love. >> he was an holistic person. he was an artist as well. he liked to do theater. >> reporter: berkely police admit it's been tough to close this case, because the killing happened during a robbery at 3:40 a.m., when few, if any people were around to witness it. >> tragic in that we can't bring him back, but we would like to be able to find a little closure, to say we did find the people who did this. >> reporter: nelson shared a note sent to her for this somber occasion by his mother in chile. >> i cannot accept this, or find comfort. fito loved life. >> reporter: his family wanted