Reward for info in arson case jumps to $26,000

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A three-alarm fire ripped through an under-construction senior citizens' independent living facility on 22nd and Northern avenues on March 18. (Source: 3TV/CBS 5) A three-alarm fire ripped through an under-construction senior citizens' independent living facility on 22nd and Northern avenues on March 18. (Source: 3TV/CBS 5)
Both suspects appear to be wearing backpacks. (Source: 3TV/CBS 5) Both suspects appear to be wearing backpacks. (Source: 3TV/CBS 5)
A nearby condo complex also suffered significant damage due to the arson fire. (Source: 3TV/CBS 5) A nearby condo complex also suffered significant damage due to the arson fire. (Source: 3TV/CBS 5)
(Source: Phoenix Police Department) (Source: Phoenix Police Department)
PHOENIX (3TV/CBS 5) -

Nearly two months after an arson fire ripped through a senior living center that was under construction in Phoenix, the reward for information leading to the arrests of the suspects has increased exponentially.

"This is one of those cases where to solve a community crime, we need the community’s help," Silent Witness spokesman Sgt. Jamie Rothschild said when announcing the new reward Thursday.

That reward started at $1,000. Now it has grown to up to $26,000. That $25,000 bump is from the owner of the facility that was leveled by that early morning fire on Saturday, March 18.

[WATCH: Joint Silent Witness, Phoenix Fire Department news conference]

A video camera recorded two people entering the building at 2211 W. Northern Avenue at about 2:45 a.m. Those people had no business being on the property let alone inside the building.

The fire was massive, not only destroying the building that was under construction but also doing significant damage to a nearby condo complex.

[SLIDESHOW: Massive fire erupts at Phoenix care facility under construction]

No injuries were reported, but the fire and its aftermath have hundreds of people.

"The crime that occurred here – this arson – has a tremendous impact on the community," Rothschild said. "This is a care facility. There are people waiting for care who now have to be delayed because of the crime that occurred here. ... There are people who don’t have jobs yet because of this facility being delayed."

"It was a tremendously devastating fire for this neighborhood," Phoenix Fire Capt. Rob McDade concurred.

"We don’t know why this happened," Rothchild said. "We don’t know who did this. We have video of what we believe are the suspects, but what we need – and our plea to the community is – if you’ve got that information about who did this, even if it’s just a hunch, we need you to call Silent Witness.

Police released that surveillance video of the suspects a month ago.

"A seemingly small piece of information to you might be critical to the fire investigators," Rothschild continued.

[RELATED: Police looking for 2 men in connection to massive arson fire (April 11, 2017)]

"For any fire that’s deliberately set in our community, we can’t stand for that," McDade said. "We need to make sure that we punish those that are responsible for it. It sends a message that if you’re going to start a fire in our community – put lives at risk and stop the beautification and improvements in these neighborhoods – we’re going to find you and we’re going to prosecute you."

Investigators are keeping the few details they have to themselves.

"The evidence right now – without giving away too much of the case -- is if we can catch the people, we can link them to the accelerants were used," McDade said. "That’s what we’re hoping to do."

One of the suspects seen in the video is described as a man wearing a light color shirt and black pants. The other is a person wearing all black. Both, according to Silent Witness, appeared to have backpacks.

Rothschild said when it comes to crime, people tend to overanalyze information they have. His advice? Don't.

"If somebody showed an interest in this fire – or fire in general – or they’re loitering around the neighborhood or they just have really been a little too into this particular story, whatever it is, we need you to trust your gut," he said. "We don’t need you to prove the case."

Both Rothschild and McDade stressed that tipsters will remain anonymous so people should feel safe contacting Silent Witness.

[DOWNLOAD: Silent Witness flyer]

Anyone with information is asked to call Silent Witness at either 480-WITNESS (948-6377) or 1-800-343-TIPS (8477). Spanish speakers may call 480-TESTIGO (837-8446). (Click or tap phone number to call from this story on your mobile device.)

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