A person pauses in front of Stars of David with the names of those killed in a deadly shooting at the Tree of Life Synagogue, in Pittsburgh, Monday, Oct. 29, 2018. (AP Photo/Matt Rourke)
Muslims from Hydrabad seen placing a temporary grave for Irving Younger at the makeshift memorial after the tragic shooting in Pittsburgh at the Tree of Life. (Aaron Jackendoff/SOPA Images/LightRocket via Getty Images)
A Pittsburgh Police officer walks past the Tree of Life Synagogue and a memorial of flowers and stars in Pittsburgh on Sunday, Oct. 28, 2018. (AP Photo/Gene J. Puskar)
A Pittsburgh Steelers fan holds a sign honoring the victims of a deadly shooting spree at a synagogue on Saturday during the second half of an NFL football game. (AP Photo/Gene J. Puskar)
A person stands in front of Stars of David that are displayed in front of the Tree of Life Synagogue with the names of those killed in Saturday's deadly shooting. (AP Photo/Matt Rourke)
People arrive to pay their respects in front of a memorial on October 28, 2018, outside of the Tree of Life synagogue after a shooting there left 11 people dead. (Brendan Smialowski/AFP/Getty Images)
Gideon Murphy places a flower at the Tree of Life Synagogue in Pittsburgh, Sunday, Oct. 28, 2018. (AP Photo/Matt Rourke)
People stand in front of a memorial on October 28, 2018, outside of the Tree of Life Synagogue after a shooting there left 11 people dead in Pittsburgh on October 27, 2018. (Brendan Smialowski/AFP/Getty Images)
People wait their turn to place flowers at the Tree of Life Synagogue in Pittsburgh, Sunday, Oct. 28, 2018. (AP Photo/Matt Rourke)
Two people support each other in front of flowers at a makeshift memorial at the Tree of Life Synagogue in Pittsburgh, Sunday, Oct. 28, 2018. (AP Photo/Matt Rourke)
Pittsburgh Steelers fans sit behind a banner with a Star of David beside their Steelers blanket as they watch the teams warm up. (AP Photo/Don Wright)
Flowers sit at a makeshift memorial at the Tree of Life Synagogue in Pittsburgh, Sunday, Oct. 28, 2018. (AP Photo/Matt Rourke)
People hold candles as they gather for a vigil in the aftermath of a deadly shooting at the Tree of Life Synagogue. (AP Photo/Matt Rourke)
People hold candles as they gather for a vigil in the aftermath of a deadly shooting at the Tree of Life Congregation, in the Squirrel Hill neighborhood of Pittsburgh. (AP Photo/Matt Rourke)
People hold candles as they gather for a vigil in the aftermath of a deadly shooting at the Tree of Life Congregation, in the Squirrel Hill neighborhood of Pittsburgh. (AP Photo/Matt Rourke)
A woman holds a candle during a vigil in Squirrel Hill, Pennsylvania on October 27, 2018, to remember those that died in the Tree of Life Synagogue shooting earlier in the day. (Dustin Franz/AFP/Getty Images)
People hold candles as they gather for a vigil in the aftermath of a deadly shooting at the Tree of Life Synagogue, in the Squirrel Hill neighborhood of Pittsburgh. (AP Photo/Matt Rourke)
People hold candles as they gather for a vigil in the aftermath of a deadly shooting at the Tree of Life Congregation, in the Squirrel Hill neighborhood of Pittsburgh. (AP Photo/Matt Rourke)
People gather for a vigil in Squirrel Hill, Pennsylvania on October 27, 2018, to remember those that died in the Tree of Life Synagogue shooting earlier in the day. (Dustin Franz/AFP/Getty Images)
Braddock, Pa., Mayor John Fetterman hugs a person as they gather for a vigil in the aftermath of a deadly shooting at the Tree of Life Congregation. (AP Photo/Matt Rourke)
People gather for a vigil in the aftermath of a deadly shooting at the Tree of Life Congregation in Pittsburgh, Saturday, Oct. 27, 2018. (AP Photo/Matt Rourke)
Police stand guard outside the Tree of Life Synagogue in Pittsburgh where a shooter opened fire Saturday, Oct. 27, 2018. (AP Photo/Matt Rourke)
Deb Polk holds a sign as she gathers with others for a vigil in the aftermath of a deadly shooting at the Tree of Life Synagogue in Pittsburgh, Saturday, Oct. 27, 2018. (AP Photo/Matt Rourke)
Police speak with members of the community after a shooting at the Tree of Life Synagogue at Squirrel Hill, Pennsylvania on October 27, 2018. (Dustin Franz/AFP/Getty Images)
Flowers are left on a sidewalk after a shooting at the Tree of Life Synagogue at Squirrel Hill, Pennsylvania on October 27, 2018. (Dustin Franz/AFP/Getty Images)
Media tents and vehicles line an intersection near the Tree of Life Synagogue, upper left, where a shooter opened fire Saturday, Oct. 27, 2018. (AP Photo/Gene J. Puskar)
Rapid reaction SWAT members leave the scene of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018, in Pittsburgh, Pennsylvania. (Jeff Swensen/Getty Images)
Bishop David Zubick of the Diocese of Pittsburgh addresses members of the media near the Tree of Life Synagogue, the scene of a mass shooting earlier in the morning, in Pittsburgh. (Dustin Franz/AFP/Getty Images)
Denise Fulton cries as she speaks with Bishop David Zubick after she came to show support for members of the community near the Tree of Life Synagogue. (Eric Baradat/AFP/Getty Images)
A SWAT team truck turns on a street near the Tree of Life Synagogue, after a gunman opened fire inside at Squirrel Hill, Pennsylvania, on October 27, 2018. (Dustin Franz/AFP/Getty Images)
People comfort each other at the site of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018, in Pittsburgh. (Jeff Swensen/Getty Images)
Pittsburgh Public Safety Director Wendell Hissrich describes the gravity of a mass shooting at the Tree of Life Synagogue in Pittsburgh. (Jeff Swensen/Getty Images)
Tammy Hepps, Kate Rothstein and her daughter, Simone Rothstein, 16, pray from a prayerbook a block away from the site of a mass shooting at the Tree of Life Synagogue. (Jeff Swensen/Getty Images)
Rapid reaction SWAT members leave the scene of a mass shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018, in Pittsburgh, Pennsylvania. (Jeff Swensen/Getty Images)
Tammy Hepps, Kate Rothstein and her daughter, Simone Rothstein, 16, pray from a prayerbook a block away from the site of a mass shooting at the Tree of Life Synagogue. (Jeff Swensen/Getty Images)
Police rapid response team members respond to the site of a shooting at the Tree of Life Synagogue in Pittsburgh, Pennsylvania. (Jeff Swensen/Getty Images)
Police rapid response team members respond to the site of a shooting at the Tree of Life Synagogue in Pittsburgh, Pennsylvania. (Jeff Swensen/Getty Images)
Residents talk to the media near the site of a shooting at the Tree of Life Synagogue in the Squirrel Hill neighborhood on October 27, 2018, in Pittsburgh, Pennsylvania. (Jeff Swensen/Getty Images)
Police rapid response team members respond to the site of a shooting at the Tree of Life Synagogue in Pittsburgh, Pennsylvania. (Jeff Swensen/Getty Images)
Police rapid response team members respond to the site of a shooting at the Tree of Life Synagogue in Pittsburgh, Pennsylvania. (Jeff Swensen/Getty Images)
People gather on a corner near the Tree of Life Synagogue in Pittsburgh, Pa., where a shooter opened fire Saturday, Oct. 27, 2018, injuring multiple people. (AP Photo/Gene J. Puskar)
A SWAT team arrives at the Tree of Life Synagogue in Pittsburgh, Pa. where a shooter opened fire injuring multiple people, Saturday, Oct. 27, 2018. (AP Photo/Gene J. Puskar)
Neighbors around the corner from the site of a mass shooting at the Tree of Life Synagogue embrace one another in the Squirrel Hill neighborhood. (Jeff Swensen/Getty Images)
First responders surround the Tree of Life Synagogue in Pittsburgh, Pa., where a shooter opened fire Saturday, Oct. 27, 2018. (AP Photo/Gene J. Puskar)
First responders arrive at the Tree of Life Synagogue in Pittsburgh, Pa.m, where a shooter opened fire Saturday, Oct. 27, 2018. (AP Photo/Gene J. Puskar)
First responders surround the Tree of Life Synagogue in Pittsburgh, Pa., where a shooter opened fire Saturday, Oct. 27, 2018. (WTAE)
First responders surround the Tree of Life Synagogue in Pittsburgh, Pa., where a shooter opened fire Saturday, Oct. 27, 2018. (WTAE)