and Chavistas clashed, the Metropolitan Police attempted to separate both sides from further confrontation with two trucks with water cannons. A few minutes after Chávez's broadcast at 3:45 pm, gunfire erupted again and the march began to disperse slightly. As the demonstrators marched closer to the Llaguno Overpass, they could see Chavistas heavily armed, some with pistols. Police began to disperse the Chavista gunmen returning fire and few demonstrators began to follow behind them with pings of gunfire heard on the police armored vehicles, though the marchers fled shortly after as the violence grew. According to medical staff at the Vargas Hospital, the first to arrive at the hospital were opposition marchers. According to surgeons, the marchers had been shot in the back with handgun fire while fleeing and others were severely injured from 7.62×51mm NATO military rounds from Fal rifles, standard equipment of the National Guard defending Chávez. Later after police responded to pro-Chávez shooting, Chávez supporters then began being seen injured in the hospitals. As a result of the confrontations, 19 were left dead, most killed between 3:20 pm and 3:55 pm, and over 150 injured. Coup Plan Ávila and military insubordination Immediately after Chávez finished his broadcast at 5:25pm he changed into his military fatigues and grabbed his rifle and pistol, worrying about rebels entering the palace. Chávez believed that the best way to stay in power was to implement Plan Ávila, a constitutionally banned military contingency plan that was created to maintain public order in Caracas that left hundreds to thousands of Venezuelans dead during the Caracazo. Since General Rosendo would not comply earlier in the day with Chávez's order to implement Plan Ávila, Chávez went directly to General Jorge García Carneiro, one of his most trusted generals and ordered him to go through with it. "The killings at the anti-Chávez demonstration rocked the country", The New York Times reported on 20 April, "reviving memories of the violent events in 1989, known as the Caracazo, in which hundreds were killed by government forces. Venezuelans across the political spectrum swore that such violence would never take place again." Shortly after 6:00pm, word spread at Fort Tiuna that Chávez-loyalist General Carneiro was still seeking to implement Plan Ávila. Head of the army General Efraín Vásquez Velasco was meeting at the Army School with other officers concerned about Chávez's use of violence when Chávez ordered General Carneiro, one of