Photos: See the touching memorial set up for Times Square crash victim Alyssa Elsman

TIMES SQUARE, Manhattan (WABC) -- A concrete barrier at the site of a deadly crash in the heart of New York City's Times Square has been transformed into a touching memorial.

The NYPD barrier replaced a metal pole that stopped a driver who drove his car up the sidewalk into a crowed of people last Thursday. An 18-year-old tourist from Michigan -- Alyssa Elsman -- was killed and 20 others were injured.

Since the crash, people have written encouraging message to 18-year-old Alyssa Elsman's family, and showing support for all of the victims.

Among the messages written: "God bless," "RIP," and "We will not forget."

See photos of the memorial here:

Items placed at the memorial include photos, stuffed animals and candles.

Alyssa Elman's father even left a printed letter thanking the people of New York City.

RELATED: Good Samaritans heroically tackled Times Square driver

The driver of the car, 26-year-old Richard Rojas, of the Bronx, is facing second degree murder charges in the incident. The Naval veteran allegedly said he was high on PCP-laced marijuana at the time.

Click here for more stories about the Times Square pedestrian crash.