police say they heard her screams and that led to the arrest of davis and the search of his home where he lives with his grandparents. police believe davis may be linked to three other unprovoked attacks in the neighborhood, including the murder of a 66-year-old tourist three days ago in an alley in the 800 block of emerson street northwest. we don t have the links to say that this is in fact the same person. i can tell you i feel very much more comfortable now that this person is in custody. reporter: sources say the suspect davis is the younger brother of vernon davis, tight end for the san francisco 49ers. and vonta davis, a cornerback for the miami dolphins. vernon davis tweeted today, just got disturbing call from back home in washington, d.c. a good day gone bad. hopefully-e wasn t involved. today on wtop radio the mayor said that suspect davis may have some mental problems. we think this is a case of someone who s mentally ill and someone who acted out, perhaps
hopefully, he wasn t involved. today on wtop radio the mayor said that suspect davis may have some mental problems. we think this is a case of someone who s mentally ill and someone who acted out, perhaps did not take his medication as he should have. reporter: so what impact did that attack last night have on that teenager? today i talked to her grandmother. right now she s scared and she s like traumatized. she said she don t want to go back outside. because this happened to her. reporter: as suspect davis was running away, police say he tossed a backpack into the alley but they found it. inside they say they found a claw hammer. it appears to have blood on it. live in northwest, pat collins, news 4. day 3 of deliberations over. still no verdict in one of d.c. s most notorious crimes. five men are facing charges in the south capital street shooting that left five people dead, nine injured. those attacks happened back in march of 2010. prosecutors say the rampage