attorneys for amazon -- emma zhou say the tree was improperly trimmed. kristina ran down is an washington square park.>>reporter: this is the copy of the complaint that was filed against the city these are the trees that are alleged to be improperly pruned. families continue to enjoy the playground at washington square park more than a month after emma zhou was paralyzed after branch fell and hit her. her husband says their world has changed. >> she can only move her arm and talk and cannot move anything else.>>reporter: the family is filed against the city. the attorney says the pine tree shows evidence of a process that removes larger bruises from the top of the tree that can result in new growth that is subject to breaking.>> you can see it starts to form branches and that's what we see in the tree that caused emma injuries.>>reporter: they call in preventable.>> they could've prevented it and avoided it if they had inspected it. >>reporter: he says tree topping violates the cities pruning and standard laws but say it is illegal. they released a state

lawyers for emma zhou say the 50 foot tall pine tree was improperly trimmed. they say workers were using an illegal practice called tree topping, it allows the branches to go quicker and larger. the branches can break off due to their excessive size, turning trees into what her attorney says is a dangerous hazard.>> the real concern is that this is a ring of nine trees that share the same evidence, kids are playing and that's what happened to,. we want to raise awareness about this issue so it doesn't happen to another family.>> emma zhou will need more than a year in the hospital to recover.>>> coming up later, the giants are still breathing, how about the wildcard. we have the highlights. we have to show you this georgia football fan running through a door and passionate ecstasy over a win. >>> brittney shipp is tracking the weather that is cooler temperatures. i will go over the details. honey, is the internet back yet? yes!! i need to let her know that i like this! i like, like, like, like... i haven't seen a movie based on a comic book in so long. i know.

. >> steve:they say the tree was not properly maintained. 36-year-old emma zhou was with her kids at washington square park in north beach when the 100 pound limb fell on her last month. zhou is still recovering from a broken spine, severed spinal cord and cracked skull. she is not expected to walk again. lawyers for zhou say the nearly 50-foot-tall pine tree was improperly trimmed. they say city workers were using an illegal practice called "tree topping". that's when the top of a tree is removed allowing branches to grow quicker and larger. the branches can then break off due to their excessive size, turning trees into dangerous hazards. >>:"the real concern here is that this is a ring of 9 trees that all show the same evidence..so that this doesn't happen to another family." emma zhou will need more than a year of hospital rehabilitation to help her recover from her injuries. >> steve:coming up on the kron4 news at 6, we'll hear from her husband who has more on his wife's condition. >> pam:a man is severely injured after being shot in the head with a paintball gun. the incident ha

claims were filed on behalf of emma zhou children and husband. the family's attorney claims the city and properly pruned trees in the park using an illegal practice called tree topping. branches grow too fast and too big and then break off. the city department says the tree in question is healthy and the incident was a freak accident. maureen kelly kron 4 news.>>reporter: the man accused in a brutal home invasion appears in court monday. this man, zachary cuen is charged with force -- for felonies in the beating of flo douglas of san jose. prosecutors allege zachary cuen broke into douglas home last sunday morning and ransacked her house and beat her. he demanded money and threatened to kill her twice. he faces a maximum sentence of life in prison.>>reporter: here on the peninsula, a chp pokes person is saying they are now confident a metal object involved in an accident on highway 101 fell off a caltrans truck. the piece identified by caltrans as a nozzle cap was normally attached by a train. how it got loose is under investigation. the truck lo

at washington square park in san francisco's north beach more than a ma after emma zhou was paralyzedanch fell and hit her as she watched her children play. >> she can only move her arms and talk. she can only move her head like that. >> reporter: they have filed a claim against the city alleging the property wasn't pruned properly. >> the tree top shows evidence of pruning improperly. >> at that topping cut, you can see that it starts to form branch that's spread out like an octopus. that's what we see in the tree that caused emma's injury. >> reporter: it was not a freak accident but a preventable one. >> the city could have avoided this by not cutting the tree in the first place and this -- if they had inspected it own -- and identified the problem. >> reporter: the laws seethe kept topping it -- is illegal. we are always saddened when tragic accidents occur, the city said. our thoughts with -- are with ms. zhou and her scruple i don't want someone to get hurt again. or killed by a branch like that. >> reporter: the attorney says he's requested the maintenance and inspection record

here you can see pictures of 36 year old emma zhou in her hospital bed. her husband says she suffered brain damage , a severed spinal cord and permanent paralysis from the waist down. the doctors say she will never walk again and that's a nightmrare for me this is the scene from that august day in washington square park in north beach. the mother of two was hit by a a 100 pound tree branch which snapped off, falling an estimated 50 feet. she had been talking her two young children playground when she was hit. her husband says the 5 and 9 year old girls have been traumatized by the incident.especially his youngest. >>:she is crying all night i think she has nightmares >> reporter:claims for unspecified damages over 25- thousand dollars have been filed against the city for each family member. this move is considered a precursor to a lawsuit. the rec and park department says the tree was inspected after the accident and has been determined to be healthy. a city arborist later checked out all of the trees in that park. and the mayor has asked for trees in all

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. --- en la demanda ''emma zhou'' argumentqueo podaron bielos arboles en el parque washington square. paralizada de la cintura para abajo y doctores dicen que tal vez no vuelva a caminar... cesar autoridades dan a conocer de dnde provino un artefacto que atraves el parabrisas de un conductor el viernes pasado causando un accidente mortal sobre la autopista 101... lorena melissa hernndez hablo con las autoridades melissa que fue lo que caus este accidente? 00:01 00:34 01:15 02:07 melissa intro: graciasuen tardes lpatrulla de n que loque atraves el parabrisase este conductor fue lo que parece ser la tapa de la pipa de agua de un camin de caltrans... se cree que pudiera haber salido disparada tras la explosin de una llanta de uno de estos vehculos sot: parece como que exploto la llanta la explosin de una llanta pudo haber causado que este artefacto saliera disparado causando un accidente mortal el viernes sobre la autopista a 101 en sentido sur. sot: art montiel ya sabemos que un pedazo de metal penetro el parabrisas de la camioneta y le pego al chofer en el lado izquierdo del cuello el

. >> a large pine tree branch fell on top of emma zhou last month when she was taking her two daughtersnorth beach neighborhood. the family says the children are having nightmares and sleep walking. the legal claim which precedes the lawsuit accuses the city workers of a tree trimming process of topping, removing large branches in the top of the tree resulting in weak and hazardous branches. >> the trees were topped in such a way as to create this particular hazard. this is a known hazard that the city recognizes and actually warns homeowners not to do. >> in response, the san francisco city attorney's office released this statement, quote, we are always saddened when tragic accidents occur and our thoughts are with ms. zhou and her family. our office is in the process of reviewing the claim. >>> happening today, federal regulators are expected to release new rules on self- driving cars. the department of transportation secretary anthony foxx told reporters, all technologies will have to meet a 15 point safety assessment and they are considering ways to regulate how many experimental ve