The Latest on fatal shootings in a Tampa neighborhood (all times local):

2:20 p.m.

New York City police say they would like ballistics results of the gun used in the Tampa, Florida, killings to see if it matches any unsolved crimes in New York.

Twenty-four-year-old Howell Emanuel Donaldson was arrested Tuesday by Tampa police in the shooting deaths of four people. He has been charged with first-degree murder and detained after a tip that he had a gun at a McDonald's restaurant. They said he used the same gun for all the shootings.

Authorities say the gun was purchased in early October.

Donaldson attended St. John's University in Queens, graduating in January 2017. Police in New York said he had an arrest in 2014 for a minor crime, but the arrest was sealed.

NYPD Chief of Detectives Robert Boyce said police will go back through cold cases to see whether Donaldson could be linked to any crimes.

Police officials are in contact with Tampa police.

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10:15 a.m.

The Tampa police chief says the suspect in four killings there used the same gun in all of the shootings.

Police Chief Brian Dugan said during a news conference Wednesday that 24-year-old Howell Emanuel Donaldson was cooperative with investigators but he did not tell authorities why he was doing this. The chief says at this point there is "no apparent motive."

Dugan said Donaldson admitted that he owned the gun that was turned over to police and cracked the case, but Donaldson did not admit to the killings.

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7:30 a.m.

A Florida police officer who was doing paperwork while sitting in a McDonald's restaurant got a tip led authorities to the suspect accused of killing four people in random shootings over the past two months.

Tampa Police Chief Brian Dugan said during a late-night news conference Tuesday that 24-year-old Howell Emanuel Donaldson walked into the McDonalds and asked a fellow employee to hold a bag with a loaded semiautomatic gun while he went to a nearby business to get a payday loan. The employee consulted with a manager who notified the officer sitting at a table.

When Donaldson returned, police were waiting. He's facing four counts of murder.

Television station WFLA, citing an arrest report, said a search of Donaldson's cellphone found location data storage that indicated three days of recorded times and activities that correspond with the first three shootings on Oct. 9, Oct. 11 and Oct. 19.

The report says Donaldson asked for a lawyer while talking with police.

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Police in Tampa say they have arrested a 24-year-old man and will charge him with murder in a string of recent homicides.

Tampa Police Chief Brian Dugan says Howell Emanuel Donaldson will be charged with four counts of first degree murder in connection with deaths in the Seminole Heights neighborhood.

Police detained the man earlier Tuesday after a tip that he had a gun at a McDonald's.

Four people have been killed in the neighborhood since Oct. 9. Police have said the shootings were in the same area and could be the work of a serial killer.

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9:40 p.m.

Florida detectives are speaking with a man they think might be connected to a string of recent homicides, but no arrests have been made.

Tampa Police Chief Brian Dugan said during a news conference Tuesday that officers took the man to headquarters after a tip about a gun at a McDonald's in the Ybor City neighborhood. Dugan didn't say why detectives were interested in the man or release his name.

Police have been searching for the person - or people - responsible for shooting and killing four in the Seminole Heights neighborhood since Oct. 9. Police have said the shootings happened within close proximity to one another, aren't robberies and could be the work of a serial killer.

The department has received more than 5,000 tips. Dugan says he's optimistic but acknowledged previous leads have led to nothing.

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