Asking lawmakers to make sure the death of his older brother was not in vain, Philonise Floyd urged Congress on Wednesday to push ahead with reforms which can hold police accountable for the wrongful deaths of Americans like his brother George, who was killed in Minneapolis last month.

"The people marching in the streets are telling you, enough is enough," Philonise Floyd said to the House Judiciary Committee.

"When you watch your big brother, who you looked up to your whole entire life, die - die begging for his mom," Floyd's brother said with disbelief in his voice.

"I'm tired of pain," Floyd added, adding that he wanted to make sure his brother George 'was more than another face on a t-shirt, more than another name on a list that won't stop growing.'

George Floyd's killing in late May - after a police officer kneeled on his neck for almost nine minutes - touched off riots and street protests around the world, and pushed Democrats to rush forward with a new bill on police accountability and reform.

"For every incidence of excessive force that makes headlines, the ugly truth is that there are countless others that we never hear about," said Rep. Jerry Nadler (D-NY).