. >> reporter: hardin wasn't shot but his 7-year-old niece, 4- year-old nephew and their grandmother were. they are expected to survive. alaysha was killed instantly. >> she was such a sweet girl, such a loving girl. >> reporter: sharon smith, who lives in the complex, says she won't have her own grandchildren over anymore. it's simply not safe. >> i can't let them come here. it's just not safe. i don't know what's going on. ♪[ music ] >> reporter: a vigil for alaysha, the streets of oakland went from sad to mad. trayvon martin supporters even oscar grant's mother showing up to the vigil to the bullet ridden apartment. >> this murder was senseless. and my heart bleeds. my heart bleeds. my son was only 22. but this baby, this is a baby. >> reporter: random shooting, hardly. someone walked through this gate, down a pathway, right up to the front door and fired a barrage of bullets right through the security screen. the shooter reportedly rang the doorbell. police removed it for fingerprints. a show of force from the department as police hunt for a killer and an emotional police chief s