A cell phone video shows a vicious knife attack on two Boston Common park rangers. A homeless man has been charged in the attack.In the cell phone video, park rangers can be seen approaching a homeless man who suddenly charges at them.Watch the reportOne ranger gets stabbed and knocked to the ground. Then the suspect goes after the second park ranger chasing him around the statue and stabbing him as well.The mother of one of the Boston park rangers stabbed multiple times by a homeless man on Boston Common Tuesday says her son hopes to be back on the job soon."He's improving and we're really, really encouraged by it," Janis Hurd, Sgt. Al Hurd's mother, said.He had several stab wounds, but life-saving surgery has given Al Hurd hope he will return to a job he's loved for 22 years."He wants to be back soon," Janis Hurd said.The homeless man accused of attacking Al Hurd and another ranger, James Lunnin, on Boston Common Tuesday has had a violent life.Court documents detailed Bodio Hutchinson's prior arrests for biting off a man's ear, punching a woman at a McDonald's and taking on nine corrections officers in jail with near super-human strength.After the brutal attack, Janis Hurd is even more concerned for her son's safety."It's a difficult choice," she said. "My guess is that they probably should be armed actually because the city life is getting more and more dangerous."Lunnin was less seriously hurt, but was stabbed five times. On Facebook he thanked Boston EMS, police, park rangers, and the public for quickly catching the suspect.He's back home recovering while Al Hurd continues to improve in the hospital."He had an angel on his shoulder quite frankly. Someone was watching out for him," Janis Hurd said.

A cell phone video shows a vicious knife attack on two Boston Common park rangers. A homeless man has been charged in the attack.

In the cell phone video, park rangers can be seen approaching a homeless man who suddenly charges at them.

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Watch the report

One ranger gets stabbed and knocked to the ground. Then the suspect goes after the second park ranger chasing him around the statue and stabbing him as well.

The mother of one of the Boston park rangers stabbed multiple times by a homeless man on Boston Common Tuesday says her son hopes to be back on the job soon.

"He's improving and we're really, really encouraged by it," Janis Hurd, Sgt. Al Hurd's mother, said.

He had several stab wounds, but life-saving surgery has given Al Hurd hope he will return to a job he's loved for 22 years.

"He wants to be back soon," Janis Hurd said.

The homeless man accused of attacking Al Hurd and another ranger, James Lunnin, on Boston Common Tuesday has had a violent life.

Court documents detailed Bodio Hutchinson's prior arrests for biting off a man's ear, punching a woman at a McDonald's and taking on nine corrections officers in jail with near super-human strength.

After the brutal attack, Janis Hurd is even more concerned for her son's safety.

"It's a difficult choice," she said. "My guess is that they probably should be armed actually because the city life is getting more and more dangerous."

Lunnin was less seriously hurt, but was stabbed five times. On Facebook he thanked Boston EMS, police, park rangers, and the public for quickly catching the suspect.

He's back home recovering while Al Hurd continues to improve in the hospital.

"He had an angel on his shoulder quite frankly. Someone was watching out for him," Janis Hurd said.