Police in Pennsylvania are questioning a man on Monday in connection with the fatal shooting of UnitedHealthcare CEO Brian Thompson, NBC News reported.

The man was found with a gun that is similar to the one used to kill the 50-year-old Thompson by a masked gunman last Wednesday in New York City, according to NBC.

The unidentified man also was found in possession of a silencer and a fake New Jersey identification.

Police approached the man after receiving tips from customers at a McDonald's restaurant who believed he looked suspicious.

New York police previously have said that a person of interest being sought for questioning in the case had stayed at a hostel in Manhattan before Thompson's shooting after checking in with a fake New Jersey ID.

New York police are en route to Altoona, Pennsylvania, where the man is being questioned.

The development in the case came on the same day that Thompson's funeral was set to take place in Minnesota.

The CEO was on his way into an investor day meeting for UHG at the Hilton Hotel in midtown Manhattan early Wednesday morning when a gunman shot him from behind.

The suspect then fled the area on a bike and pedaled into nearby Central Park.

The NYPD has said the suspect was spotted exiting the park on foot about 20 blocks north of the shooting scene, and that he then took a taxi north to the neighborhood of Washington Heights, where he was last seen entering the Port Authority Bus Terminal there.

Police have also said that person is believed to have arrived in New York City on Nov. 24 on a bus from Atlanta, and that he immediately went to the Hilton that same night and spent about a half hour walking around the streets nearby.

- Tom Winter of NBC News and Jonathan Dienst of WNBC contributed to this report

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