Donald Trump tweets about Pier 14 fatal shooting

SAN FRANCISCO (KGO) -- Kate Steinle's death is becoming a presidential campaign issue, courtesy of Donald Trump, who has taken some heat for strong comments he made about undocumented immigrants.

Trump tweeted today, "Where are the other candidates now that this tragic murder has taken place because of our unsafe border? We need a wall!"

The family has set up a GoFundMe account in memory of Kate Steinle.