NBC News - The family of Tamir Rice, the 12-year-old fatally shot by a police officer in Cleveland last month, called Monday for the officer to be tried and convicted. 

The family's lawyer, Benjamin Crump, appealed for the officer who shot Tamir, Timothy Loehmann, to be charged without a grand jury trial. 

Crump said surveillance video showing Officers Loehmann and Frank Garmback arriving at the park and shooting Tamir is "enough probable cause to indict the police officer now." 

Cleveland Deputy Chief Ed Tomba said last month that a grand jury would hear the case because the Cuyahoga County Prosecutor's office, which is overseeing the case, has a policy of presenting all fatal police shootings to a grand jury. 

But Crump said he doesn't think the policy is fair. "There is nothing written anywhere in the law that says police officers are to be treated differently than any other citizen," he said Monday.

Tamir's mother, Samaria Rice, said she is "looking for a conviction." She said the entire incident was mishandled by police. When she arrived at the park, Rice said she first "noticed the police was just standing around and they wasn't doing anything." 

Then, she realized her 14-year-old daughter, who had been at the park with Tamir, was in the back of a police car. "She told me that the police tackled her and put her in handcuffs," Rice said. 

Tamir died in the hospital the next day. The family has filed a civil suit against Loehmann, Garmback and the city of Cleveland.