Philadelphia Police released new video Tuesday of the two suspects in Officer Moses Walker's murder.
Police presence in the 22nd district has also been thick for the last three days.
Investigators are hoping a $118,000 reward will be enough incentive for someone to come forward.
Police officers spent Tuesday night patrolling in cars, on bikes and horses through the streets of North Philly.
"Until these folks are off the street and in jail for a long period of time. It's not going to stop . Today it's somebody else. Tomorrow it could be you" said Police Commissioner Charles Ramsey.
The roundup of suspected criminals has reached a feverish pace. FOX 29 cameras were there when four alleged drug dealers were plucked from the street, arrested and taken in for questioning.
It all happened as police released new video Tuesday showing the two suspects minutes before Officer Walker was gunned down.
Earlier, city workers helped clear an empty lot near the murder scene, looking for evidence.
Guardian Angels supported police stopping drivers in hopes finding a more leads.
"They're vicious, violent killers. There is predator and prey" said Ramsey.
Meanwhile, even as a record reward is announced, leads are pouring in. But in a "no snitch" culture of the streets, some wonder if the incentive will even work.
"You can't testify then two weeks later they find you dead. The money means nothing" said Keith Abrams of North Philadelphia.
As the investigation continues, police released details of Officer Walkers funeral. A public viewing will be held on Sunday at Deliverance Evangelistic Church on West Lehigh Avenue from 6-10 p.m. The funeral will be held Monday at the church at 10 a.m.
Friday, May 24 2013 7:29 AM EDT2013-05-24 11:29:02 GMT
Our World War II veterans have seen some of the farthest reaches of the globe. One sight they haven't seen: The World War II Memorial in Washington, D.C.
From the beaches of Normandy to the islands of Okinawa, our World War II veterans have seen some of the farthest reaches of the globe. One sight they haven't seen: The World War II Memorial in Washington, D.C.
Monday, May 20 2013 1:25 PM EDT2013-05-20 17:25:38 GMT
A text message that says "I'm about to leave" is the last time Janet Royer had contact with her son Thursday night. "It's like a nightmare, it's the worst nightmare anyone can think of. I keep thinking
A text message that says "I'm about to leave" is the last time Janet Royer had contact with her son Thursday night.
Tuesday, May 14 2013 8:31 PM EDT2013-05-15 00:31:38 GMT
Kermit Gosnell will spend the rest of his life in prison. The 72-year old abortion provider has waived his right to appeal the first-degree murder charge issued by a jury just one day ago.Dr. Kermit Gosnell
Kermit Gosnell will spend the rest of his life in prison. The 72-year old abortion provider has waived his right to appeal the first-degree murder charge issued by a jury just one day ago.
Monday, May 13 2013 7:03 AM EDT2013-05-13 11:03:57 GMT
It was a heartbreaking Mother's Day for the mom of a shooting victim gunned down on South Street as she travels to Philadelphia to identify the body of her son.
It was a heartbreaking Mother's Day for the mom of a shooting victim gunned down on South Street as she travels to Philadelphia to identify the body of her son.
Friday, May 24 2013 5:46 PM EDT2013-05-24 21:46:00 GMT
Surveillance video you'll see only on FOX shows chaos just after a police officer opened fire on a man who witnesses say had his hands up to surrender. Police deny that claim.
Surveillance video you'll see only on FOX shows chaos just after a police officer opened fire on a man who witnesses say had his hands up to surrender. Police deny that claim.
Friday, May 24 2013 5:30 PM EDT2013-05-24 21:30:28 GMT
Ocean City is a fabulous family-friendly, shore town that is ready for a fabulous Summer season. From the relaxing beaches to the famous boardwalk, Ocean City is safe, clean and has some of the best food
Ocean City is a fabulous family-friendly, shore town that is ready for a spectacular Summer season.
Friday, May 24 2013 4:40 PM EDT2013-05-24 20:40:06 GMT
Not the prettiest Friday, but we're ready for a great weekend. Expect scattered showers and thunderstorms throughout the day. After an early high in the upper sixties, temperatures fall & winds pick up out of the chillier northwest. Right now the Memorial Day Weekend looks sunny and cool with highs in the low to mid 60s on Saturday, in the 70s Sunday & Monday. Cooler temps at the shore.
Friday, May 24 2013 4:27 PM EDT2013-05-24 20:27:15 GMT
A Philadelphia judge has ordered that a couple who believe in faith healing over medicine be held without bail on third-degree murder charges in the April death of their 8-month-old son.Herbert and Catherine
A Philadelphia judge has ordered that a couple who believe in faith healing over medicine be held without bail on third-degree murder charges in the April death of their 8-month-old son.Herbert and Catherine